Geographically, it stretches from the Rocky Mountains in the west to the prairies and boreal forests in the east, making it one of Canada’s most diverse regions in terms of landscape.

In terms of climate, this province experiences a continental climate, characterized by warm to hot summers and cold winters. These climatic factors encourage the growth of a wide range of garden weeds.

Additionally, as the sunniest province in Canada with fluctuating moisture levels, Alberta is an ideal environment for persistent and invasive weed species.

This article covers 20 common weeds you’ll find in your outdoor space along with their distinct physical attributes for easy identification. We’ll also recommend the best removal methods to help maintain a healthy, weed‑free garden. 

1. White Clover (Trifolium repens)

• Local Name: White Clover
• Family: Fabaceae
• Annual or Perennial: Perennial

White clover is a perennial creeping plant that generally grows 10-15 cm tall. You can identify it by its three-parted leaflets and white clustered flowers that fade to pink with age. 

It is native to Europe and Asia, and since it was introduced in Canada, it can be found throughout Alberta in a variety of habitats, including residential gardens and lawns.

T. repens aggressively roots at stem nodes, forming large patches in areas around the garden where other plants will not grow.

There are several ways to eliminate white clover. You can manually remove the young plants, grow a vigorous lawn that outcompetes the weed through increased nitrogen fertilization, or increase mowing height, preferably over 3 inches.  

2. Black Medic (Medicago lupulina)

• Local Name: Hop Clover, Black Clover, or Yellow Trefoil
• Family: Fabaceae
• Annual or Perennial: Annual or Short-lived Perennial

Black Medic is a common broadleaf weed in the legume family. It is native to Europe and temperate Asia, but now can be found in many regions across Alberta. You can identify it by its trifoliate leaves and small yellow flowers. 

Like White Clover, Black Medic is a strong indicator of low nitrogen levels in your outdoor landscape. It is a prolific seed producer and grows a deep tap root, quickly becoming invasive. 

Hand-pulling is a viable option for small infestations. Correct compaction, aerate, seed, or fertilize your soil to prevent Black Medic growth.

3. Dandelion (Taraxacum officinale)

• Local Name: Dandelion
• Family: Asteraceae
• Annual or Perennial: Perennial 

Few weeds can scream spring in Alberta like dandelions. Their vigorous growth and bright yellow heads usher in warmer weather after long, cold winters. However, they can also take over gardens, and like other prolific seed-producing weeds, they stick out like a sore thumb. 

You can pull them out by hand and make sure to remove the entire taproot to prevent regrowth. Cutting the weeds before they seed using handy tools can also efficiently remove the weeds. 

4. Quackgrass (Elymus repens)

• Local Name: Quackgrass or Couch Grass
• Family: Poaceae
• Annual or Perennial: Perennial 

Quackgrass is one of the most troublesome weeds in Alberta. The perennial grass can be identified by its linear, light-green leaves and wheat-like spikelets. 

As an aggressive weed, it spreads by seeds and rhizomes and establishes deep roots, taking over gardens quickly. It not only competes with other desirable plants but also diminishes the aesthetic appeal of the outdoor spaces. 

Remove the clumps of grass by hand or through repeated cultivation. Ensure that you remove the rhizome fragments and dispose of them to prevent regrowth. 

5. Purslane (Portulaca oleracea)

• Local Name: Purslane
• Family: Portulacaceae 
• Annual or Perennial: Annual 

Purslane is a native of Northern Africa and Southern Europe, but has been widely naturalized in Alberta. It is a low-growing succulent weed with reddish stems and flat, rubbery leaves that form dense mats in gardens. 

While P. oleracea is adapted to growing in poor soils, you’ll mostly find it in poorly maintained gardens or newly established turf. 

Hand-pulling is generally sufficient to remove purslane weeds, as solitary plants tend to cover large areas. Ensure that all leaves and stems are disposed of correctly. 

6. Canada Thistle (Cirsium arvense)

• Local Name: Canadian Thistle
• Family: Asteraceae
• Annual or Perennial: Perennial

Canada thistle is an aggressive colony-forming weed that grows up to 1.5 m tall. It is easily identified by its lance-shaped, dark green leaves with spiny margins and clusters of pink to purple flowers. 

This noxious weed spreads by seed and creeping roots, quickly overtaking desirable plants and turf in gardens. 

Pull or dig deeply to remove roots or mow before seed set to starve the weed of nutrients.

7. Leafy Spurge (Euphorbia esula)

• Local Name: Leafy Spurge
• Family: Euphorbiaceae
• Annual or Perennial: Perennial 

A native of Europe and Asia, Leafy Spurge was introduced as an ornamental in Alberta and has since been classified as a noxious weed. 

It has clumpy stems, waxy, bluish-green leaves, and small yellowish-green flowers supported by bracts. It forms deep roots (up to 9m) and spreads 4-5m laterally. 

For these reasons, eradicating leafy spurge requires patience (as complete eradication may take time) and a multifaceted approach. Consider hand pulling or mowing for small, young plants and continuous, intensive cultivation for larger plants until complete eradication is achieved.

8. Common Mallow (Malva neglecta)

• Local Name: Garden Mallow
• Family: Malvaceae
• Annual or Perennial: Perennial 

Common Mallow is a herbaceous perennial, erect or prostrate, about 90 cm tall. It has branched and hairy stems, long-stalked, green to purple leaves, and five-petaled white to pinkish flowers. 

While it may provide beautiful blooms for the garden, it can also spread if left unchecked. Digging out the seedlings before they develop woody taproots is the best option. This is achievable before the plant develops four leaves.

9. Creeping Bellflower (Campanula rapunculoides)

• Local Name: Creeping Bellflower
• Family: Campanulaceae
• Annual or Perennial: Perennial 

A common summer garden weed in Alberta, Creeping Bellflower can steal the heart with its bright, bell-shaped, purple flowers. However, it’s an aggressive and invasive plant that tends to take over the entire garden, making it a weed to watch. 

To effectively remove it, use your hands or a small garden shovel and ensure you dig out the entire root system to avoid regrowth.

10. Common Chickweed (Stellaria media)

• Local Name: Chickweed, Nodding Chickweed
• Family: Caryophyllaceae
• Annual or Perennial: Annual or Short-lived Perennial

While it may be native to Europe, Asia, and Northern Africa, chickweed has since been introduced in Canada and can now be found throughout Alberta.

You can identify the winter weed by its egg-shaped to elliptic leaves, small, white, star-shaped flowers, and delicate, prostrate stems that form mats on the ground. 

Remove the weed by hand-pulling or using a digging tool when the ground is moist, as it has shallow roots, and ensure all seeds and stems are well disposed of to prevent regrowth. Mulching the affected area may also control the weed growth.

11. Yellow Nutsedge (Cyperus esculentus)

• Local Name: Yellow Nutgrass, Chufa Sedge, Tigernut, Grass Nutsedge, or Earth Almond
• Family: Cyperaceae
• Annual or Perennial: Perennial 

Yellow Nutsedge is a native weed that you’ll probably find in poorly drained areas in your vegetable or flower garden. The grass-like sedge has yellow-greenish leaf blades and yellow or purple flower heads. 

To get rid of the sedge, repeatedly remove the small plants before they develop tubers. Eliminate the wet conditions in your garden by applying a fabric mulch.

12. Tall Buttercup (Ranunculus acris)

• Local Name: Meadow Buttercup, Field Buttercup, or Giant Buttercup
• Family: Ranunculaceae
• Annual or Perennial: Perennial

Tall Buttercup is a perennial plant that grows up to 1 meter tall. The weed has branched stems, deeply lobed leaves, and bright yellow flowers. 

It is typically found in meadows and pastures but can also grow in gardens, displacing desirable plants through its efficient seed and rhizome propagation. 

Hand-pulling and digging are viable control strategies for small infestations. Mowing and eliminating wet conditions around the garden can also reduce infestations.

13. Annual Bluegrass (Poa annua)

• Local Name: Annual Bluegrass
• Family: Poaceae
• Annual or Perennial: Annual

As the name implies, Bluegrass is an annual grass that is a common and persistent weed in gardens. It is a short-growing grass that competes for resources and also forms dense clumps, overtaking other garden plants. 

Pull or dig out the small grass infestations before seed production. Repeat as many times as possible to achieve complete eradication. 

14. Common Tansy (Tanacetum vulgare)

• Local Name: Garden Tansy or Golden Buttons
• Family: Asteraceae
• Annual or Perennial: Perennial 

Garden Tansy is an Eurasian native that grows 30-150 cm tall. It is easily identified by its clustered stems, alternate fern-like leaves, and golden-yellow button flowers. 

The aromatic perennial spreads by seeds and short underground rhizomes, competing for resources and forming dense patches that can reduce aesthetic appeal. 

The best removal methods are hand-pulling and mowing before seed set.

15. Purple Loosestrife (Lythrum salicaria)

• Local Name: Purple Loosestrife
• Family: Lythraceae
• Annual or Perennial: Perennial 

Purple Loosestrife was once a beloved garden staple for its stunning pink to purple flowers. However, due to its highly invasive nature, it has since been classified as a noxious weed in Alberta and other provinces in Canada. 

It forms numerous brushlike stands that compete for resources and can outcompete other vegetation. Look out for wet areas around your garden because once it establishes, it can cause waterlogging by blocking drainage.

Repeated cutting and mowing of the young plants before they set seed will provide effective control. 

16. Yellow Toadflax (Linaria vulgaris)

• Local Name: Common Toadflax
• Family: Plantaginaceae
• Annual or Perennial: Perennial 

Like many other Eurasian natives, Yellow Toadflax was introduced in Canadian provinces like Alberta as an ornamental and for other economic uses. 

While it can provide stunning lance-shaped leaves and showy yellow blooms to brighten your garden, it can easily escape and aggressively take over. 

Remove by pulling where applicable or incorporate heavy cultivation to ensure you dig out all the root stalks.  

17. Buckhorn Plantain (Plantago lanceolata)

• Local Name: Narrow-leaved Plantain, English Plantain, or Rib Grass
• Family: Plantaginaceae
• Annual or Perennial: Perennial 

Buckhorn Plantain is a common garden weed that grows 30- 60 cm tall. It can be identified by its mature, elongated leaves with whitish midveins that form a basal rosette and a dense cluster of inconspicuous flowers on a cylindrical, upright flowerhead. 

This weed forms dense patches, quickly overtaking other desirable vegetation. It may also be a strong indicator of areas with low fertility. 

Quick removal intervention is vital for this plantain weed. Repeated hand-pulling and digging of the young plants to remove the root system is the best way to eradicate it. Monitor consistently and repeat the control measures as required to prevent regrowth. 

Laying a landscape fabric and organic mulch on seedlings can also limit weed growth and spread. 

18. Lamb’s Quarter (Chenopodium berlandieri) 

• Local Name: Lamb’s Quarter or Pigweed
• Family: Amaranthaceae
• Annual or Perennial: Annual 

Lamb’s Quarter is an annual weed native to Europe and Asia that grows 1-2m tall. It has since spread to many parts of North America, including Alberta, CA. 

The common garden weed tends to produce many seeds, compete for important resources, and grow faster than other vegetation. Its dense growth can also shade out other low-growing plants, leading to their death.

Remove young plants by hand-pulling or apply organic mulch to suppress their growth.

19. Sow Thistle (Sonchus arvensis)

• Local Name: Mash Thistle, Field Thistle, Field Milk Thistle, or Creeping Sow Thistle
• Family: Asteraceae
• Annual or Perennial: Perennial

The perennial sow thistle is a common noxious garden weed throughout Alberta. It has long, slightly toothed leaves, yellow ray flowers, and can grow up to 1.5m tall. 

The weed spreads by seeds, which sprout in mid to late May in Alberta. What makes it a noxious weed is that it grows deep underground roots, such that even small infestations can choke out other desirable plants. 

Remove the young plants before they seed through digging and dispose of the fragments properly. 

20. Kochia (Bassia scoparia)

• Local Name: Tumbleweed
• Family: Amaranthaceae
• Annual or Perennial: Annual 

Kochia is an Eurasian native that was introduced as an ornamental in Canada but has since become a problematic weed, especially in the arid and semi-arid regions of Alberta.

The thick bushy olive green weed grows about 4-5 feet tall. It is a prolific seed producer, resilient in dry and saline conditions, and germinates early, and grows rapidly, encouraging quick spread in gardens.

The good news is that the young plant’s shallow taproots are easy to remove through pulling or hoeing. 

Sylvia Kiragu

Lead Editor for Insight Weeds.

insightweeds.com/

The post 20 Common Weeds in Alberta, CA, You’re Likely to Find in Your Garden appeared first on InsightWeeds.

Annoying weeds always seem to choke out or destroy good plants. They compete for sunlight and resources aggressively. 

Some grasses that grow in rice fields look similar to rice, which may make it harder for you to eliminate them. That is where this guide comes in handy.

We’ve listed the 20 most commonly occurring weeds in the Philippines to make it easier for you to identify them. We’ve also explained ways to eliminate them.

1. Asian Spiderflower – Cleome viscosa

• Local Name: sabila-sabilahan or kampanilya
• Family: Cleomaceae
• Annual or Perennial: Annual

The Asian Spiderflower is an annual weed that grows up to one meter. The plant is native to tropical Africa but is widely spread in warm and humid habitats across the Americas and Asia.

The Asian Spiderflower is mainly a broadleaf weed. You will find it mostly on disturbed sites, gardens, rice paddies, pastures, orchards, abandoned lands, and along roadsides in the Philippines.

The weed has a taproot system. Therefore, the best way of removing it is through hand pulling or spraying chemicals to kill its roots.

2. False Daisy – Eclipta prostrata

• Local Name: takip-kohol
• Family: Asteraceae
• Annual or Perennial: Annual

False Daisy is one of the many broadleaf weeds in the Philippines. It is an annual weed that can grow up to 50 metres tall.

False Daisy is characterised by cylindrical and greyish roots, with purplish stems and fine white hairs. It has serrated leaves that can be up to 12 centimetres long. 

False Daisy has a fibrous with a shallow taproot system. Therefore, hoeing is the best method for removing it, especially if it grows along moist, disturbed areas.

3. Jute – Corchorus aestuans

• Local Name: saluyot
• Family: Malvaceae
• Annual or Perennial: Annual

Jute is another major weed in the Philippines. It is an annual plant native to tropical Asia and Africa.

Erect and sparingly branched stems characterise the weed. Furthermore, it can grow up to 40 centimetres, with the stem forming long hairs on one side.

The Jute mainly grows in disturbed areas in the rainforests of the Philippines. You can also find it in a vine thicket, monsoon scrub, and wooded grassland.

You can remove the weed through hoeing.

4. Wiregrass – Eleusine indica

• Local Name: barit
• Family: Poaceae
• Annual or Perennial: Annual

The Wiregrass is also known as the yard grass or Indian goosegrass. It is one of the many grasses in the Philippines.

It grows in disturbed land, waste places, roadsides and riversides, beaches and open banks, and damp marshlands.

The Wiregrass is an annual weed that can grow up to one metre tall. It is native to tropical Asia but is commonly found in the Philippines.

The Wiregrass has a fibrous root system. Thus, you can eliminate it by applying a herbicide to decrease its growth.

5. Asthma Plant – Euphorbia hirta

• Local Name: tawa-tawa
• Family: Euphorbiaceae
• Annual or Perennial: Annual

The Asthma Plant is one of the most common weeds in the Philippines. Most people in the Philippines consider it a herb, and some consume it as a herbal tea for fevers.

The Asthma Plant is an annual plant native to the tropical regions of the Americas. It is also a broadleaf that grows in open grasslands, roadsides, and pathways.

The Asthma Plant has a taproot system with a distinct and well-developed primary root. You can remove it through hand pooling.

6. Bayhops – Ipomoea pes-caprae

• Local Name: baging-baging
• Family: Convolvulaceae
• Annual or Perennial: Perennial

The Bayhops is a perennial weed native to tropical America. It can grow to a height of up to two metres.

The Bayhops is a broadleaf weed. It has small pink to lavender flowers with purple centres. You will find it growing on the upper parts of beaches.

It develops a long, thick, starchy root as it grows. You can remove it through hand pulling, hoeing, or chemical application.

7. Giant Calotrope – Calotropis gigantea

• Local Name: kapal-kapal baging
• Family: Apocynaceae
• Annual or Perennial: Perennial

The Giant Calotrope is a broadleaf weed native to many Asian countries, including the Philippines. The weed looks like a shrub and can grow up to four metres tall.

In some countries, the leaves of the Giant Calotrope are used in floral arrangements. But some can use it for ornamental purposes.

The Giant Calotrope is one of the many perennial local weeds in the Philippines that grow with a deep taproot system. 

Although people use it for beauty, the plant can be invasive. Therefore, the best way to remove it is through hand pulling.

8. West Indian Lantana – Lantana camara

• Local Name: Kantutay
• Family: Verbenaceae
• Annual or Perennial: Perennial

The West Indian Lantana is a broadleaf perennial weed native to the American tropics. The weed is common throughout the world and is considered invasive.

The West Indian Lantana grows to a height of between two and six metres. It grows to become a shrub and forms a dense thicket.

The weed can grow in many areas, including agricultural zones, forest margins and gaps, riparian zones, grasslands, secondary forests, and beach fronts. 

You can remove it by cutting or applying chemicals to kill its roots.

9. Shameplant – Mimosa pudica

• Local Name: Makahiya
• Family: Fabaceae
• Annual or Perennial: Annual

The Shameplant is an annual pantropical weed native to the Caribbean and South and Central America. 

It has an erect stem in young plants but becomes creeping or trailing several months after growth. It can reach a length of up to three metres.

The Shameplant is invasive and tends to attack hand-cultivated fields. Although it has a taproot system, the plant can affect good crops by forming a thicket around them.

The best way of removing the weed is through hand pulling or herbicide application.

10. Green Carpetweed – Mollugo verticillata

• Local Name: Tangantangan
• Family: Molluginaceae
• Annual or Perennial: Annual

The Green Carpetweed is an annual broadleaf plant native to tropical America. It grows to a height of up to 50 centimetres.

The Green Carpetweed also has whorled leaves and flowers that turn into an egg-shaped fruit. The weed may grow in disturbed areas or climb over nearby plants and obstacles.

The Green Carpetweed has a taproot system. However, it grows by reseeding itself. Therefore, herbicide application is the best way of removing it.

11. Creeping Woodsorrel – Oxalis corniculata

• Local Name: sorrel
• Family: Oxalidaceae
• Annual or Perennial: Annual

The Creeping Woodsorrel is an annual weed that grows up to 50 cm tall and is native to tropical Asia.

The weed is identified by its yellow trifoliate leaves. The leaves subdivide into three rounded leaflets.

The Creeping Woodsorrel grows by spreading at the roots to form a mat. Thus, it will spread easily on arable land and waste places.

Since it spreads at the root, you can eliminate the plant by hand pulling or hoeing.

12. Carabao Grass – Paspalum conjugatum

• Local Name: talahib
• Family: Poaceae
• Annual or Perennial: Perennial

The Carabao Grass is a perennial weed native to the American tropics. The weed can grow to two metres high and spread through long stolons.

The Carabao Grass commonly grows in humid places on the island, at forest edges, on roadsides, and on plantation crops. However, many people use it as a lawn grass.

The Carabao Grass can withstand mowing. Therefore, you can eliminate it by applying herbicides or hoeing.

13. Gale of the Wind – Phyllanthus niruri

• Local Name: tawa-tawa
• Family: Phyllanthaceae
• Annual or Perennial: Annual

Gale of the Wind is an annual broadleaf weed native to tropical America. The plant can grow to 70 centimetres tall and have ascending branches.

The weed is also characterised by smooth, light green bark with pale green flowers. Gale of the Wind grows with a dense fibrous root system, which can spread easily and make the weed drought resistant.

You will find the weed growing in disturbed areas and landscape beds. The best way to eliminate it is through herbicide application.

14. Common Purslane – Portulaca oleracea

• Local Name: kulitis
• Family: Portulacaceae
• Annual or Perennial: Annual

The Common Purslane is an annual succulent native to tropical America. The plant grows to a height of one metre with smooth, reddish stems.

It also has clustered leaves at stem joints and ends. The plant grows with a thick taproot and many fibrous secondary roots.

The Common Purslane will grow on flower beds, cultivated fields, roadsides or other disturbed or waste places. You can remove it through hand pulling or chemical application.

15. Arrowleaf Sida – Sida rhombifolia

• Local Name: buri-buri
• Family: Malvaceae
• Annual or Perennial: Annual

The Arrowleaf Sida is a perennial or annual weed native to tropical America. It has an erect stem that can grow up to 120 centimetres tall.

The Arrowleaf Sida also has dark green leaves shaped like a diamond. The plant grows on waste ground, including rocky areas and roadsides.

The Arrowleaf Sida is considered a subshrub plant. Therefore, removing its roots is the best way of preventing it from regrowing.

16. Black Pigweed – Trianthema portulacastrum

• Local Name: papait
• Family: Aizoaceae
• Annual or Perennial: Annual

The Black Pigweed is an annual weed native to Africa, North and South America. It mostly grows in disturbed and cultivated land and interferes with good crops.

The stems of Black Pigweed can grow to a height of up to one metre. You can also identify the weed by its green-to-red colour.

Also, its leaves are small and round or oval blades. You can pull the weed by hand since it grows through its taproot system.

17. Billygoat Weed – Ageratum conyzoides

• Local Name: bukal-bukal
• Family: Asteraceae
• Annual or Perennial: Annual

The Billygoat Weed is an annual weed native to tropical America. However, it is now considered an invasive weed because it destroys good crops that come into contact with it.

The Billygoat Weed can grow to a height of up to one metre. Its leaves are ovate and produce white flowers.

The Billygoat Weed thrives in garden and agricultural soils and is common in disturbed sites. You can remove it by hoeing or chemical application.

18. Alligator Weed – Alternanthera philoxeroides

• Local Name: kangkong-lupa
• Family: Amaranthaceae
• Annual or Perennial: Perennial

The alligator weed is a perennial plant native to South America. It is considered an invasive weed and has spread in many countries globally, including the Philippines.

The alligator weed mostly thrives in dry and aquatic environments. You can identify it with its whitish, papery flowers and short stalks.

Its stem is also irregular and hollow and can sprout up to a length of ten metres. As an invasive species, chemical application is the best way to control the alligator weed.

19. Punarvana – Boerhavia diffusa

• Local Name: sambong
• Family: Nyctaginaceae
• Annual or Perennial: Perennial

The Punarvana is a creeping perennial weed with an unclear native range. 

However, the weed is widely dispersed throughout India, the Pacific, and the southern United States. It is also naturalised in the Philippines.

You can identify it by its purplish stems, thickened at the nodes. Also, the weed has ovate or rounded leaves with a slightly pinkish colour.

Most people in the Philippines consider the weed a herb because of its medicinal properties. 

Since the weed occupies disturbed land, you can remove it by hand pulling.

20. Nut Grass – Cyperus rotundus

• Local Name: baray-baria
• Family: Cyperaceae
• Annual or Perennial: Perennial

The Nut grass is a perennial grass considered to be an invasive weed. It is native to Africa, Europe, and Asia.

The Nut grass can grow to a height of up to 140 centimetres. You can identify the plant by its tubers that look like nuts.

Nut grass grows with an extensive underground network of basal bulbs, fibrous roots, and thin, wiry rhizomes.

You can eliminate it through herbicide application, hoeing, or the other steps we covered in our nut grass removal guide.

You may also like

• Forage grasses and legumes in the Philippines

Carla Etheridge

Carla is a student pursuing a B.S in Agricultural Systems Technology. With a passion for landscaping for over 4 years, Carla loves plants. She has previously contributed to several other sites in the space before joining InsightWeeds.

The post 20 common weeds in the Philippines and their scientific names appeared first on InsightWeeds.

While most of these weed plants are referred to as “weed,” it’s important that you identify them by their name and features. Once you’ve done so, you’ll find eradicating and controlling them easier.

However, other weeds are attractive that instead of getting rid of them, you can relocate them to another place or leave them.

These are 20 common weeds with long narrow leaves and how to control or eradicate them.

1. Purslane

The common purslane, Portulaca oleracea, is an annual (and also tropical perennial) succulent plant native to North Africa and Southern Europe.

It is thought to contain nutritional value and can be eaten raw or added to food salad.

The plant may grow as tall as 16 inches high and has smooth, reddish prostrate stems. Its leaves are clustered at the stem’s joints and ends, producing yellow flowers.

The best time to get rid of purslane is at its early stage of maturity, and you can do so by hand pulling them. You can also use herbicides, which are effective when the weeds are young.

2. Field bindweed

Scientifically named Convolvulus arvensis, the field bindweed is a herbaceous perennial plant that grows on walls and fences.

The weed plant is native to North America, Europe, and Asia.

The bindweed can grow up to 6.5 feet in length and has pinkish-white flowers that bloom and produce a pleasant fragrance.

The stems are slender, branched, and deciduous, with alternate leaves with pointed lobes at the base.  

The effective way to control or eradicate bindweed is by removing the plant from its root system.

You can also apply herbicides or landscape fabric on top of it to prevent seed production.

3. Pigweed

Pigweed’s scientific name is Amaranthus, but it is also known as wild spinach, redroot pigweed, and green amaranth.

It is among the annual weeds with long narrow leaves native to North and South America.

The pigweed’s key features include simple green oval leaves and round seedpods that produce many seeds.

Its flowers are purplish-pink with dark pink stripes running down them. They’re common in areas with high sun exposure and are edible –often as an addition to salads.

The best way to eradicate pigweed in your lawn or garden is by pulling out the weed before it flowers.

Then, since it thrives in light for germination, mulch the weeds with 3 to 6 inches of mulch layers.

4. Dandelion

Dandelions, scientifically named Leontodon taraxacum, are perennial plants that grow in temperate regions in areas with well-drained and moist soils.

The plant species varies with native regions such as North America, Europe, and Asia.

Its bright yellow flowers characterize it. It often grows on lawns and appears through cracks in sidewalks and driveways.

Despite being a weed, the plant is used for medicinal purposes and can be added to salads.

The best and most effective method to eradicate dandelions is by digging up the plant from its roots. For this method to be effective, you might need special dandelion removal tools.

NOTE: You can also eliminate dandelion using herbicides, but the weed may keep coming back, especially if you haven’t destroyed its root system.

5. Common thistle

The common thistle, whose botanical name is Cirsium vulgare, is a perennial plant with long narrow leaves native to Europe.

The weed is commonly found in pastures, meadows, and roadsides and is native to Europe and Asia.

It’s characterized by dark purple flowers blooming in spring and spiny and lance-shaped leaves.

It also has a deep taproot system that anchors it firmly to the soil for support, water, and nutrients.

Digging up thistles isn’t an effective eradication approach since they’re invasive weeds that can regenerate through their roots.

Instead, the most effective ways of controlling common thistle are by hand-pulling, mowing, and using herbicides.

6. Creeping speedwell

The creeping speedwell, whose botanic name is Veronica filiformis, is a perennial weed with hairy stems.

It’s native to Europe, Asia, northern Turkey, and the Caucasus and was introduced to the United States in the 1920s.

The weed can grow up to 2 to 5 inches high and 20 to 30 inches wide upon maturity.

It produces blue, pinkish-purple, or white flowers and reproduces primarily by seeds. It mostly grows in lawns, gardens, or turf grass areas with moist soils.

Creeping speedwell can be controlled by regular mowing and applying the mecoprop or ioxynil herbicide mixture in spring or autumn.

You can also manually remove the weeds to control their spread.

7. Groundsel

Common groundsel, botanically called Senecio vulgaris, is an annual flowering weed native to Europe, parts of North Africa, and northern Asia. It has then been distributed to various habitats worldwide.

The long, thin-leaf plant features pinnately lobed leaves about 3 inches long and covered with soft fine hairs.

Its stems are hollow from the top to its base, producing yellow flowers. Furthermore, it has a shallow taproot and spreads itself by reseeding.

The recommended method of controlling the weed plant is by hand pulling and tilling.

You can also use herbicides, but they may affect crops such as forage legumes, mint, carrots, and other non-grass crops.

8. Cleavers

Cleavers’ botanical name is Galium aparine, an annual weed plant native to European countries.

They are easily identified by their slender sprawling stems that grow up to one meter in length.

They also have slender green leaves and little green-white flowers that develop green or purple fruits.

You can eradicate it by hand pulling it, as they are easy to uproot and remove. However, you should remove it once it rears its head to minimize regeneration.

9. Marestail

Also known as horseweed, marestail’s scientific name is Erigeron Canadensis. It’s an annual plant native to North America and has spread throughout Asia, Australia, and Europe.

Its key features include a height of about 1.5 meters with hairy stems. Its leaves are slender and unstalked with coarsely toothed margins.

Its flowers have a distinguishable white or purple ring and yellow florets.

Since they are resistant to herbicides, it’s recommended that one uses herbicides such as burndown herbicides in fall or early spring before they mature.

10. Green foxtail

Its scientific name is Setaria viridis, an annual and ubiquitous grass weed native to Eurasia. It later grew on lawns, crop fields, gardens, and landscapes in the United States.

The green foxtail grows up to three inches high, and its leaves are half an inch wide. Its seed head is whip-like with small dark green brittles and looks like a foxtail. It also has fibrous roots.

It’s advised not to use herbicides to eradicate green foxtail as it may cause more damage than good. Instead, you can hand-pull it from your garden or yard.

11. Ribwort plantain

Ribwort plantain, known scientifically as Plantago lanceolata, is a perennial weed native to Eurasia. It was later distributed to North America, Australia, and other countries with suitable habitats.

It can be identified by its ribbed lance-shaped leaves and soft hairy stems. Its flower stalk is deeply furrowed, and its head gradually turns brown and seeds.

The main way to prevent these weeds is by keeping your soil healthy and aerated. If present, the best weed treatment is by pulling them out, including the roots, before they have a chance to spread their seeds.

12. Couch grass

Its botanical name is Elymus repens, a perennial outdoor plant with long leaves. The grass is native to Europe, Asia, northwest Africa, and the Arctic biome.

Its characterized by its underground stems with creeping shoots. Unfortunately, it also has a deep network of roots that spread quickly and choke valuable plants.

Small infestations can be cleared out by hand-pulling them during springtime.

It’s commonly referred to as an invasive weed, and its control measures include digging them to the roots and covering the area with mulch to prevent regrowth.

NOTE: Make sure you use an appropriate weeding tool for the best results.

13. Chickweed

Chickweed, scientifically called Stellaria media, is an annual winter weed that grows in cool regions.

The plant species is native to Eurasia and has been naturalized worldwide. It grows in moist soils or temperatures between 40 to 50 degrees Fahrenheit.

Its characteristics include lush green mates with small, white star-shaped flowers. The leaves are green, oval, and hairless, while its stems are terete and hairless.

It’s very difficult to control chickweed because of its invasive capabilities. Therefore, the best method is hand-pulling or cultivating it at its early stages of maturity.

It would be best to mulch the cultivated area with organic mulch wood chips to prevent the seeds from germinating.

14. Crabgrass

Scientifically known as Digitaria sanguinalis, crabgrass is an annual weed that thrives in moist soil, making it difficult to control once it has germinated.

The weed is native to Europe and Eurasia, having later been introduced in the United States in 1849 as a forage crop.

Its key features include smooth stems with circular grooves. Its leaves are long and narrow and yellowish-green to lime green.

Crabgrass is easy to identify; once done, they are hand-pulled or mowed to eradicate them when young.

You can also use crabgrass removal tools or a crabgrass preventer such as Tenacity.

Ensure you don’t overwater your garden to prevent crabgrass’s uncontrolled growth and spread.

15. Shepherd’s purse

Shepherd’s purse, whose scientific name is Capsella bursa-pastoris, is a low but quick-growing plant that’s invasive and difficult to eliminate.

It’s an annual flowering weed plant native to Eastern Europe and Asia Minor.

It grows three to 1.64 feet long and produces triangular or heart-shaped seedpods with seeds that remain productive in the ground for several years.

It also has pointed leaves that grasp the long stem and its small and white flowers.

The best method to control shepherd’s purse is by regularly pulling the weeds and mowing the lawn for the best results.

Next, mulch the remaining weed 3 inches deep or use herbicide before it flowers.

16. Sandbur

Sandbur, botanically called Cenchrus, is an annual and perennial weed plant native to North America, Europe, Asia, and the South Pacific.

It can be identified by its 40 inches height and widely spread and shallow roots. The leaf blades are twisted and have a fringed ligule at the leaf’s base.

The recommended way of managing sandburs is by regularly mowing your lawn and maintaining your lawn.

You can also pull it or fertilize your lawn or garden in the fall to crowd out any sandbur seedlings in spring.

17. Canada thistle

Canada thistle, whose scientific name is Cirsium arvense, is a weed plant that spreads by seed. It’s native to parts of Europe and was introduced in America in the 16^th century.

Its common characteristics include purple spiky flowers, long skinny leaves that form arrow-like shapes, and hairy prickly stems. Its seeds are similar to dandelion seed heads but more significant.

One way of minimizing infestation of Canada thistle is by mowing it into the soil before planting. You can also snip off the weed at its base using garden scissors.

It’s, however, not a good idea to uproot the weed as it can regrow with the tiniest portion of root in the soil.

18. Smartweed

Smartweed, botanically referred to as Persicaria lapathifolia, is an annual herb native to parts of Europe.

It can be identified by its red erect stems, a height of 6 feet when fully grown, and dark pink flowers. The green leaves are alternate and hairy, while its blades have a dark-colored mark in the middle.

Maintaining a healthy and well-kept lawn or garden can prevent the weed from growing.

If there’s a small infestation, you can pull them out or use organic herbicides but avoid spraying on your plants.

19. Nutsedge

The nutsedge weed, whose scientific name is Cyperus rotundus, is an annual and perennial weed that quickly spreads by rhizomes and seeds.

They thrive in moist and dry soils and are native to Africa, southern Asia, and southern and central Europe.

It easily resembles a blade of grass with its dark green V-shaped stem. The weeds grow to a diameter of up to six inches or more and release tiny greenish-yellow triangular seeds when they mature.

Nutsedge is spread through its rhizomatous roots and seeds, making it difficult to eradicate.

That’s why it’s important to eliminate them as soon as you identify them using the herbicide glyphosate.

20. Horsetail

Horsetail weed, scientifically called Equisetum arvense, is a perennial weed that grows in wet or moist soil.

It’s a tall plant with long thin leaves and native to the Arctic regions and the Northern Hemisphere.

The weed has thin, green branches, long leaves, and erect and succulent stems. Furthermore, it’s a poisonous weed to animals, especially if consumed in huge amounts.

Common control methods such as pulling, tilling, herbicides, and smothering are ineffective in eradicating horsetail weed.

The best way to eradicate the weed is by changing the soil conditions, such as drainage, pH, and soil fertility.

Carter

IW’s Chief Editor and a lover of green spaces.

The post 20 weeds with long narrow leaves appeared first on InsightWeeds.

While weed plants with yellow flowers might look appealing and beneficial (pollination, medicinal properties, etc.), they can be very distractive if they sprout your gardens and lawns.

In addition, some of these weeds can be very aggressive, easily overwhelming other plants on your lawn. Others are resilient and can keep returning after every eradication attempt, making them very frustrating.

Identifying weeds with yellow flowers is the first step to efficiently eradicating these unwanted plants. Below, we have compiled a list of the most common 20 weeds with yellow flowers and their unique characteristics.

Top 20 common weeds with yellow flowers

Below are some of the most common weeds with yellow flowers and how to identify them:

1. Yellow sorrel

Yellow sorrel (Oxalis stricta) is a common weed in North America, Europe, and Asia. It goes by several local names, such as sourgrass, sheep weed, lemon clover, and prickle plant.

The plant commonly attacks gardens, lawns, and fields. It is a very invasive species that spread through runners and seeds (germinating once they touch the soil).

Yellow sorrel is very similar to clover, with its leaves (trifoliate) originating from a single point on the stem. These leaves are bright green, with the stem, branches, and leaf stalks having fine hairs. On top of that, it produces small yellow flowers (five petals), which bloom from spring to fall.

You can get rid of yellow sorrel by pulling the plant from the ground, but you should ensure you get the entire root system; else, it will sprout back. You can also eradicate it using systemic herbicides such as glyphosate (Roundup).

2. Creeping cinquefoil

Creeping cinquefoil (Potentilla reptans) is a flowering plant found in North Africa, Europe, and North America (Ontario, Quebec, Alabama, Florida, and Texas).

It commonly grows on roadsides, grasslands, and borders but can easily invade lawns, gardens, and yards. Its attractive sight can fool you, but it is a highly invasive weed plant that spreads quickly and aggressively using quick-rooting runners.

You can identify creeping cinquefoil by segmented, jagged, 5-lobbed green leaves, similar to the strawberry plant.

The plant grows from the main taproot, with long runners (blackish) in all directions, reaching up to one foot. The plant also has little yellow flowers (five-petalled), which bloom around June to September.

You can eradicate creeping cinquefoil by pulling it from the ground or other mechanical means such as raking. However, chemical weeds (selective or systemic, depending on where it is growing) are the best option to control them completely.

3. Dandelion

Dandelion is one of the most common yellow-flowered weeds. It is a perennial plant native to Eurasia, but a common sight in North America, South America, Oceania, and India.

Some people consider it a beneficial plant due to its high nutritional benefit – it has lots of vitamins and minerals, and the flowers are even used to make wine. However, it is a highly invasive species that spread aggressively through seeding.

It also forms deep root systems, making it hard to eradicate. The plant usually grows in crop fields, orchards, lawns and turf, gardens, yards, and roadsides.

Dandelion has distinct basal leaves that have toothed edges. The leaves are dark green and produce a milky sap.

The plant has long, hollow stems on which yellow flowers bloom at the top in clusters, forming a flower head. Dandelion also produces a seed head, like a puffball, from where the wind scatters seeds.

Due to their deep-rooted system, removing dandelions by hand or with gardening tools is difficult. Therefore, herbicides are the most effective eradication technique, especially systemic weed killers such as Roundup.

4. Common evening primrose

Common evening primrose (Oenothera biennis), or evening star, is a flowering plant native to the North American region. It commonly grows in landscapes (newly established), nurseries and seed beds, and crop fields but can occasionally invade lawns.

Common evening primrose is considered highly beneficial, with edible roots and shoots, and even used to produce evening primrose medicinal oil. However, it is highly invasive, as it has copious amounts of seeds, which easily spread and germinate.

You can identify common evening primrose with its narrow, lance-shaped leaves with smooth margins and red veins. The leaves grow in a rosette pattern in the first year before sprouting spirally from the stem as the plant matures.

Common evening primrose also has large, four-petalled, trumpet-shaped yellow flowers, which form a loose pattern on the stem.

You can eradicate common evening primrose through mechanical means – pulling by hands or digging tools from the ground. In case of widespread infestation, you can spot-treat with systemic herbicides such as glyphosate.

5. Golden clover

Golden Clover (Trifolium aureum) is a flowering plant native to Eurasia but widespread in other parts of the world, such as North America. It is one of the weeds with yellow flowers you are likely to find on your lawn. You can also see it in the fields, woodlands, roadsides, etc.

Golden clover produces compound leaves (in threes), which grow at the end of a short stalk. They are finely toothed from the tip of the leave but have a fine margin as you near the base. The plant’s stems are smooth but can occasionally have fine flattened hairs.

Golden clover also blooms a round to oval flower head, which feature small yellow flowers that turn creamy to rusty brown as the plant nears the seeding stage.

You can control golden clovers by pulling the weeds by hand from the ground. You can also use herbicides such as glyphosate if you prefer chemical control.

6. Birdsfoot trefoil

Birdsfoot trefoil is a perennial herbaceous native to Eurasia and North Africa but common around several regions worldwide. The plant can grow in diverse habitats, from lawns to crop fields, roadsides, woodlands, etc.

It is sometimes cultivated for forage and soil erosion control. However, it is an aggressive species that spreads fast and forms a dense mat, choking out other vegetation.

Birdsfoot trefoil is a low-growing plant with semi-erect stems (sometimes lying on the ground). It produces five leaflets – three compound leaflets similar to clover and two stalkless leaflets at the base of a stem.

It also has small, pea-like yellow flowers, which form a cluster pattern at the top of the stem. You can eradicate the weed plant through broadleaf herbicides such as 2-4-D, triclopyr, and dicamba.

7. Black-eyed susan

Black-eyed Susan (Rudbeckia hirta) is a wildflower plant native to North America. It commonly grows in fields, open woodlands, roadsides, and abandoned areas.

Some people do not consider the plant a weed due to its appeal. It is even used as a symbol for the University of Southern Mississippi and Maryland. However, the plant is tolerant to harsh conditions and self-seeding and thus can spread fast if not controlled.

Black-eyed Susan is a tall growing plant that can reach up to 100 cm. It produces long, ovate leaves that are winged, deeply veined, and coarse, which grow irregularly along the stalk.

However, its most unique feature is the flower; it has singular flowerheads positioned at the top of the stalks. The flower heads have a prominent black to dark-brown cone at the centre, with bright yellow petals (like rays of the sun) surrounding them.

You can control the growth of black-eyed Susan by cutting the plant down to the ground. Immediately after cutting, you should treat the roots with a systemic herbicide to kill the plant.

8. Common ragwort

Common ragwort (Jacobaea Vulgaris) is a wildflower found in Europe, Asia, North America, and other parts of the world. It is known by several local names such as ragwort, stinking willie, tansy ragwort, etc.

It can be a beneficial plant, especially in attracting butterflies. However, it is highly invasive (spreading prolifically through seeds) and can be poisonous to humans and animals.

Common ragwort is one of the several tall weeds with yellow flowers you will likely come across. It has upright growing stems, reaching up to one meter in height. It also produces large, pinnately lobed leaves, which produce a stinking smell.

The plant also has singular flower heads perched at the top of the stalk, with several small, bright yellow petals forming a cluster.

You can eradicate common ragwort by pulling the plant from the ground (before it seeds) and burning it or disposing of it inside a tightly sealed plastic bag.

In case of widespread infestation, you can deploy chemical herbicides.

9. Creeping buttercup

Creeping buttercup is a common weed with yellow flowers, which grows in gardens, woodlands, borders, and other areas with wet soil. It is an attractive plant but highly invasive due to its fast-spreading runners.

Creeping buttercup produces hairy leaves divided into three lobes at the top of the plant’s stalk. It also has bright yellow flowers with five to seven petals. You can also distinguish the plant by how it spreads on the ground through runners.

You can eliminate creeping buttercup by pulling it from the ground. However, if the weed is well established, you might need chemical herbicides to eradicate it effectively.

10. Common sow thistle

The common sow thistle (Sonchus oleraceus) is a flowering plant native to Europe and Asia but widespread in North America. It usually grows in crop fields and other disturbed areas.

The plant is pretty beneficial – forage for animals, pollination, and even cuisine (leaves are edible). However, it is highly invasive and can lower crop production on agricultural land.

Common sow thistle has smooth, erect thick stems, which produce a milky sap when cut. Its leaves are a bluish-green, with a smooth surface and lightly toothed margin.

During flower season, it blooms singular flowerheads (very similar to those of dandelions), with bright yellow petals forming a cluster at the tip of the stem. You can control the plant through chemical herbicides such as 2,4-D.

11. Lesser celandine

Lesser celandine (Ficaria Verna) is a low-growing flowering plant in the buttercup family. It is native to Europe and Asia but also widespread in North America.

It is sometimes grown as an ornamental plant but is highly invasive and can overcrowd other vegetation. It usually grows in gardens, lawns, roadsides, fields, and other natural areas.

Lesser celandine is a low-growing plant that forms a mat on the ground. It has relatively long stalks, which grow in clusters of about four to ten stems. It also produces glossy-green heart-shaped leaves and small, bright yellow flowers that bloom in spring.

Lesser celandine is very hard to control once it establishes itself. You can try to remove the plant from the ground before it flowers – by digging by hand or shovel. However, systemic herbicides such as glyphosate are the most effective eradication.

12. Common purslane

Common purslane (Portulaca oleracea), also known as little hogweed, is an annual plant widespread across Europe, North America, Africa, Asia, and Australia.

It grows in various habitats, from landscapes to gardens, lawns, and crop fields. Some people consider it beneficial because its leaves are edible – either cooked or eaten raw. However, it is fast-spreading and easily overwhelms other vegetation, such as in crop fields.

Common purslane has smooth, glossy, and fleshy-appearing green leaves with red margins. The leaves, which form a teardrop shape, are attached to the stems without a stalk and form clusters of four leaflets at the top.

The stems grow close to the ground, forming a dense mat. The plant also produces yellow flowers (either individually or in clusters), which bloom from May to September.

You can control common purslane by pulling it from the ground and disposing of it in sealed bags. You can also use cultural control means such as mulching or solarization.

You can consider herbicides such as benefin, dithiopyr, and trifluralin if you prefer chemical control.

13. Cypress spurge

Cyprus spurge (Euphorbia cyparissias) is a flowering plant with yellow flowers native to Europe. However, it was introduced to the North American region as an ornamental plant, where it has become widespread.

It commonly grows in grasslands, pastures, meadows, roadsides, and gardens. It is also found in graveyards, the nickname graveyard moss or weed.

Cypress spurge is a relatively low-growing plant, reaching 20 to 40 cm in height. It produces several branched stems, which are covered with narrow green leaves – forming cypress-like foliage.

It also produces small, inconspicuous yellowish-green flowers, which bloom at the end of the stems.

Cypress spurge is fast-growing and spreads through roots and seeds, thus making it hard to control once established. It is also poisonous to animals.

You can try to eradicate it by pulling it from the ground. However, chemical treatment using herbicides such as glyphosate is the most effective solution.

14. Canada goldenrod

Canada goldenrod (Solidago canadensis) is a herbaceous plant native to Canada and USA. It grows in moist to dry fields, swamp areas, clearings, forest edges, orchards, along roadsides, streams, ponds, cultivated fields, and gardens.

It is very beneficial as it provides forage for livestock and attracts insects with its pollen and nectar. However, it is invasive, spreading aggressively through seeds and rhizomes.

Canada goldenrod is a tall growing plant, reaching up to six feet. It has branching stems from where lanceolate (sometimes broadly linear) leaves grow alternatingly. The leaves are hairy on the underside and are prominently toothed on the edges.

The plant also produces branching flowerheads consisting of several bright yellow clustered flowers, forming a pyramid pattern.

You can control the Canada goldenrod by cutting the plant down to the ground before it produces seeds. However, chemical herbicides, such as broadleaf weed killers, are the best control mechanism.

15. Oxalis

Oxalis, also known as wood sorrels, are small weeds with yellow flowers native to North America. They usually grow on lawns, garden areas, and sunny to shady landscapes. They are considered by some people to be ornamental but are very aggressive and can suffocate other plants.

Oxalis weeds have smooth, trifoliate, heart-shaped leaves, which are green in colour (sometimes purplish or brownish-red).

The leaves tend to fold up at night (or under stress, for example, direct sunlight) before opening up in the morning. The plant also produces small yellow flowers with a cup-like shape, which bloom around summer and fall.

You can control oxalis by mulching your garden (prevention) or pulling them from the ground when they sprout. You can also use chemical control (broadleaf herbicides) to eradicate them.

16. Velvetleaf

Velvetleaf (Abutilon theophrasti) is an annual broadleaf plant native to Southern Asia. It was introduced into the North American region as a potential fibre crop, only to turn into a weed plant affecting several crops. It usually grows in crop fields, nurseries, gardens, orchards, roadsides, and disturbed land.

Velvetleaf is an upright-growing plant that can reach up to eight feet. It has a stout, hairy stem, on which large, round to heart-shaped leaves emerge in an alternating pattern.

The leaves are also hairy, with a velvety feel, hence the name. In summer, the plant produces yellow flowers with five petals, which can be found in clusters or growing singularly.

You can control the velvetleaf plant by pulling it from the ground. Depending on the growing season, you can also kill the weed with pre- and post-emergent herbicides.

17. John’s-Wort

St John’s-Wort (Hypericum perforatum) is a flowering plant native to Eurasia but widespread in North America, South America, Africa, and Australia.

It has been used in folk medicine for centuries and cultivated commercially. However, it has a strong tap root system with creeping rhizomes, which allows it to spread aggressively.

St. John’s-Wort plant has dark green, oblong-shaped leaves with small dark dots. The leaves are stalkless and attach to the stem in an alternating pattern. The plant also produces bright yellow flowers (five petals), which grow from the tip of the stem.

You can control the St. John’s-Wort plant by removing it from the ground by hand before it seeds. You should ensure you dig up the entire root system to prevent it from sprouting. However, if the invasion is widespread, you should use broad-spectrum herbicides such as glyphosate and 2,4-D.

18. Butterweed

Butterweed (Packera Glabella) is a weed plant found in North America’s central and southeastern regions. It usually grows in pastures, meadows, waste areas, and other disturbed areas. It produces a large number of seeds and thus usually grows in clusters.

The Butterweed plant has simple, lanceolate-shaped leaves with smooth margins. They are dark green to greenish-yellow, with the underside being covered with fine hairs. The plant also blooms with yellow, daisy-like flowers, which grow in clusters at the top of the stem.

The deep-rooted tap root system of the butterweed plant makes pulling them from the ground by hard almost impossible. Therefore, the best solution is to spray with systemic herbicides such as glyphosate when the plant is actively growing.

19. Marsh yellowcress

Marsh yellowcress (Rorippa palustris) is a flowering plant part of the mustard family. It is native to Eurasia and North America and usually grows in ponds, small rivers, marshy fields, ditches, and poorly drained crop fields.

Marsh yellowcress leaves start growing in a basal rosette pattern and are often oblong-shaped. As the plant matures, the leaves become deeply lobbed and grow from the stem in an alternating pattern.

Each leaflet has several pairs of irregularly toothed leaflets. The plant also produces flowers, which develop at the tip of the stems or the leaf axils. The flowers are small, yellow, and consist of four petals.

You can remove marsh yellowcress plants from the ground by hand as long as you remove the entire root system to keep it from sprouting. You can also use systemic herbicides to eradicate the infestation completely.

20. Skeletonweed

Skeletonweed (Chondrilla juncea) is a flowering plant native to Europe, North Africa, and Asia but commonly found in several temperate regions worldwide.

It is hardy, with a deep tap root system, which allows it to survive harsh environments and spread. It can also easily invade cultivated fields, landscapes, flower beds, and even lawns.

Skeletonweed is a tall growing plant, reaching up to 5 feet in height (with its taproot growing up to 7 feet deep). When sprouting, the leaves form a basal rosette pattern, which is deeply toothed, with the lobes bending backwards.

However, as the plant matures, it produces branching stems with very few leaves. However, it produces several small, bright yellow flowers, which form clusters in singular or grouped flowerheads.

Due to how deep the roots of the Skeletonweed plant grow, mechanical removal is impossible.

Instead, the best way to eradicate the weed is by applying systemic herbicides such as dicamba, 2,4-D, glyphosate, and others. You might need several applications of herbicides to kill the plant completely.

Conclusion

Are you looking to identify weeds with yellow flowers? You can come across several types of weeds that bloom yellow flowers, whether in your lawn, garden, crop fields, or other areas near your property.

The above are some of the most common weeds you need to be aware of. Despite some of these weeds appearing beneficial, they are quite invasive and can be hard to control if left unchecked.

Fortunately, with the above information, you can easily identify them and choose the best solution for eradication.

More Guides

• 7 plants that look like chamomile
• 10 common weeds with purple flowers
• 20 weeds with huge leaves
• 10 common weeds in New England and removal tips

Carla Etheridge

Carla is a student pursuing a B.S in Agricultural Systems Technology. With a passion for landscaping for over 4 years, Carla loves plants. She has previously contributed to several other sites in the space before joining InsightWeeds.

The post 20 common weeds with yellow flowers appeared first on InsightWeeds.