Top 20 Most Common Weeds in Armenia

Armenia's continental climate, characterized by hot summers and cold winters, creates a conducive environment for a variety of garden weeds. Three of the most common weeds that challenge gardeners and landscapers in this region are Prickly lettuce, Henbane, and Common chickweed. Their prevalence necessitates persistent management efforts to maintain plant health and garden aesthetics, illustrating the ongoing battle with these invasive species.

Most Common Weeds

1. Prickly lettuce

Prickly lettuce, in spite of its appearance, is the closest wild relative of cultivated lettuce. Even though it is widely considered a weed, it can be used in the kitchen. Young leaves of prickly lettuce are edible and the bitter milky latex can also be made into a condiment or to add flavor to salads. Consuming in large quantities could cause digestive upsets.

2. Henbane

Henbane is a poisonous annual or biennial plant that is native to the Mediterranean. The plant is entirely covered with greasy hairs. Its seeds spread from mid-spring to early fall.

3. Common purslane

Portulaca oleracea, colloquially known as common purslane, is an annual succulent species with reddish stems and tiny yellow, five-petal flowers. It is used for culinary purposes in various parts of the world, most often raw, in salads. Common purslane is also a good companion plant for crops that thrive in moist soils.

Growth Rate:

Rapid

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4. Common chickweed

The common chickweed gets its name due to the fact that chickens love to eat it, though they're not alone in that respect. Though it's often considered a nuisance weed, most parts of this plant can be consumed raw or cooked and used similar to spinach. The saponins in common chickweed are slightly toxic but will only have an effect if ingested in huge quantities.

Growth Rate:

Rapid

5. Bull thistle

Bull thistle (Cirsium vulgare) is a thistle plant native to Europe, Africa, and Asia. Bull thistle produces a large amount of nectar and attracts pollinators. Bull thistle is considered a noxious weed in areas of Europe and Australia.

6. Bird vetch

Bird vetch (Vicia cracca) is a flowering species of vetch native to Europe and Asia. In North America, bird vetch is considered an invasive species and a weed. In these environments, the flowering plant often grows in industrial disturbed environments like oil fields.

7. Common cocklebur

The common cocklebur (Xanthium orientale) is a variant of Cocklebur from the regions neighboring the Mediterranean. It is considered to be a weed as it invades cultivated land, outcompetes growing crops, and is toxic to livestock.

8. Common plantain

While native to Europe, the common plantain was one of the first plants to reach North America through early European explorers. Native Americans have referred to Plantago major as 'white man's footprint', as it disrupted many local ecosystems by its introduction.

Growth Rate:

Moderate

9. Prostrate knotweed

Prostrate knotweed (Polygonum aviculare) is a low-growing species that can root practically anywhere. It produces many small white flowers each summer and produces plenty of seeds that can survive for years. Its seeds can lay dormant in soils, and once they see sunlight, they will start to germinate. Because it grows so dwarf, mowing is not effective in removing it.

Growth Rate:

Slow

10. Common dandelion

*Taraxacum officinale*, widely known as common dandelion, is a herbaceous perennial that can be found in temperate regions all over the world, in habitats with moist soils. The most popular feature of this plant is its fruits, furry spheres that are easily carried by the wind. Although it is generally considered a weed, common dandelion is actually edible and very nutritious.

Growth Rate:

Rapid

11. Common mugwort

Common mugwort (Artemisia vulgaris) is an herbaceous plant often found in nitrogen-rich soils. The plant's scent is reportedly a mild insect repellant. Common mugwort is used as an offering in Nepalese temples. Tradition holds that it has cleansing properties, so believers also use it to sweep their floors to give them both a spiritual and physical cleaning.

Growth Rate:

Rapid

12. Common bird's-foot trefoil

Common bird's-foot trefoil (Lotus corniculatus) is a common flowering perennial plant that grows widely throughout Europe and North America. Commercially, it is often added to livestock feed to prevent bloating. In Britain, common bird's-foot trefoil is often referred to as "butter and eggs" due to its flowering appearance and golden color. It attracts bumblebees and is considered an invasive species in North America and Australia.

13. Stinging nettle

Although the stinging nettle has a variety of uses it is best known for its eponymous sting. It has sharp defensive hairs on its leaves and stems which will release pain-inducing chemicals when touched. Nevertheless, Dorset, England hosts an annual World Nettle Eating Championship, which started with a debate between two farmers over the severity of their nettle infestations. To consume them more safely, stinging nettles must be thoroughly boiled.

Growth Rate:

Rapid

14. Redroot amaranth

While the redroot amaranth is considered a weed in most areas, some parts are edible. Fresh leaves may be included in soups and stews, while the dried leaves can be utilized in tea or ground into flour for bread or used as a thickening agent. Seeds can also be eaten, but the stalks, roots, and older leaves contain toxic substances. Redroot amaranth is sometimes used as fodder for livestock - it is nutritious in small amounts but toxic if too much is fed over a span of several days.

Growth Rate:

Rapid

15. Black nightshade

Black nightshade (Solanum nigrum) is a highly toxic plant and caution should be exercised around this plant. It's said that black nightshade fruits can technically be consumed if they are fully ripe and properly cooked and prepared. Generally though, due to the danger they present, no one would ever want to try to eat this plant.

16. Houndstongue

Cynoglossum officinale, houndstongue, or Hound’s-Tongue is a member of the borage family with a distinctive odor, giving it another name, Rats and Mice. Its unpleasant fragrance is said to ward off rats. Classified as an invasive and noxious weed, this plant is toxic to livestock.

17. Ribwort plantain

Ribwort plantain grows in a number of different habitats as long as it has enough sunlight. Its leaves have characteristic parallel veins that make it easy to identify. The heads of ribwort plantains get popped off in some common British children's games. Its seeds are critical food sources for songbirds, and its leaves are eaten by rabbits and deer.

18. Lambsquarters

Lambsquarters has many other names, including pigweed, goosefoot, and bacon weed. This plant seems to appear out of nowhere and is considered by many to be a pesky weed. However, the greens of this plant are edible, can be prepared similar to spinach, and are packed with nutrients.

Growth Rate:

Rapid

19. Pokeweed

Although its berries look juicy and tempting, the fruits and the root of pokeweed are toxic and should not be eaten. Pokeweed is considered a pest species by farmers but is nevertheless often grown as an ornamental plant. Its berries can be made into pokeberry ink as well.

Growth Rate:

Rapid

20. Sun spurge

Sun spurge (Euphorbia helioscopia) is a winter annual that grows along the ground in a variety of locations from gardens to wastelands. It features distinctive red colored stems with toothed leaves that emit a toxic milky sap when cut or torn. Pale yellow flowers bloom from spring to summer and give way to fruit. This plant is considered a weed.

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