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The seeds are burs, and are very sticky. The plant is native but a well-known nuisance in deciduous forests of the eastern U.S. because the seeds can be difficult to remove from clothing and especially pet fur. [8] [9] The seeding part of the plant—the upper stem—dies earlier than most other plants, and becomes very brittle. Often the ...
Galium aparine, with common names including cleavers, clivers, catchweed, robin-run-the-hedge, goosegrass, and sticky willy, is an annual, herbaceous plant of the family Rubiaceae. Names [ edit ]
Cleome viscosa, the Asian spiderflower [2] or tick weed [3] is an annual herb that grows up to a meter high. It belongs to the family Cleomaceae . It is considered an invasive species and is widely distributed in warm and humid habitats across the Americas, Africa and Asia, [ 4 ] and in Australia [ 5 ] (where it is considered a native).
It spreads through the seeds contaminating crop seeds, and sticking to clothing. It is classified as an "injurious weed" under the UK Weeds Act 1959. [8] In the United States, it is classified as a noxious weed in the states of Arkansas and Iowa. [9] It is often seen in disturbed soils at the edges of roadsides, railway beds, and car parks.
The night-flowering catchfly is an annual herb producing a hairy, glandular stem up to about 75 or 80 centimeters in maximum height. It is sticky in texture. The hairy, widely lance-shaped leaves grow in opposite pairs and are up to 14 centimeters long and 5 wide, the largest ones located low on the stem.
Ageratina adenophora (synonym Eupatorium adenophorum), commonly known as Crofton weed, is a species of flowering plant in the family Asteraceae native to Mexico and Central America. Originally grown as an ornamental plant , it has become invasive into farmland and bushland worldwide.
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Parietaria judaica, spreading pellitory, is a species of herbaceous perennial flowering plant in the family Urticaceae.It is native to the eastern Mediterranean and Middle East, and is widely established worldwide as an urban weed.