Top 20 Most Common Weeds in Romania

Romania's temperate climate, with its warm summers and cold, wet winters, provides the perfect breeding ground for a variety of garden weeds. Prolific weed species such as Annual ragweed, Horseweed, and Pokeweed present ongoing challenges for gardeners and landscape managers. These invaders compete with cultivated plants for resources and can be difficult to eradicate once established, necessitating persistent management efforts to maintain balance and plant health in Romanian gardens.

Most Common Weeds

1. Annual ragweed

Annual ragweed (Ambrosia artemisiifolia) is one of the most notorious weeds in the world. It is an annual herbaceous plant with highly allergenic pollen and a very vigorous spread. Annual ragweed is a very competitive species, which is why its presence in cultivated plants is highly undesirable.

Growth Rate:

Rapid

2. Horseweed

Horseweed is a North American herbaceous annual plant with a hairy stem, numerous pointed leaves, and waxy inflorescence. It has been naturalized in Eurasia and Australia, where it is a common weed in urban and agricultural regions. Horseweed can be used in a survival situation to start a friction fire.

3. Annual fleabane

While native to North America, the annual fleabane has been introduced to other places around the world, as well as in 43 states of the United States. It is a popular choice for bees, flies, wasps, and butterflies as a source of nectar, but is invasive and is threatening the native ecosystem where they grow.

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4. 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

5. 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

6. 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.

7. 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

8. 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

9. Johnson grass

Experts consider johnson grass (Sorghum halepense) to be one of the ten worst weeds in the world. If frost or heat causes the plant to wilt, it can produce enough hydrogen cyanide to kill livestock. It grows at such a prodigious rate, it can choke out other crops. It’s named after Colonel William Johnson, an Alabama plantation owner who sowed lots of its seed around 1840.

Growth Rate:

Rapid

10. Jimsonweed

Jimsonweed (Datura stramonium) is a species of nightshade plant native to Central America which is considered an invasive species in more temperate climates. It can be toxic if ingested in significant quantities. It has a distinctive, strong smell. The jimsonweed gets its common name from Jamestown, Virginia, where soldiers ingested the plants exhibited altered mental states afterward.

11. Gallant soldier

Gallant soldier (Galinsoga parviflora) is named after the Spanish botanist Galinsoga for the genus, and parviflora means it has many small flowers. It is a plant species related to the sunflower, though its flowers are tiny. Nevertheless, each plant generates thousands of seeds. This species is poisonous to goats so ranchers need to avoid this weed as much as possible.

12. 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

13. Field bindweed

Field bindweed (*Convolvulus arvensis*) is a native Eurasian plant related to morning glory. It is considered an invasive species in non-native areas because it competes with other plants for sunlight and moisture. Field bindweed is very hard to eradicate because its taproots grow so deep, and its seeds can remain viable for decades.

Growth Rate:

Rapid

14. Whitetop

Whitetop (Lepidium draba) is a flowering plant species native to Eurasia. Whitetop is considered an invasive species in most regions. Whitetop grows rapidly through underground rhizomes.

15. Velvetleaf

Abutilon theophrasti is named after the Greek botanist Theophrastus, who was a successor of Aristotle. The velvetleaf is now considered to be an invasive species in many places of the world and is especially dangerous for corn and soybean crops. When left unmanaged, the velvetleaf can create 100s of millions of dollars in damage for farmers.

16. Creeping woodsorrel

Creeping woodsorrel (Oxalis corniculata) is a flowering herb which grows aggressively. The leaves have a lemony flavor and are often made into tea that's rich in vitamin C. However, if ingested in large amounts the oxalic acid for which the genus is named can begin to block the body's calcium absorption.

17. 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

18. 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

19. 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.

20. White campion

White campion (Silene latifolia) is a flowering plant native to Europe and Africa but now widely naturalized in the US as a common weed. It grows in the wild in alkaline soils in uninhabited environments and prefers sunny areas.

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