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It is believed to have originated in Central America, but today has a pantropical distribution and is considered a weed in some areas. [4] In northern Australia, Sida acuta is considered an invasive species, and the beetle Calligrapha pantherina has been introduced as a biological control agent in an attempt to control the plant. [5]
This plant is found in tropical and subtropical regions of North America, Asia, South America, and Africa, [3] situated in gardens, road sides, farm fields and disturbed sites. [4] B. alba is an annual or short-lived perennial, which is considered a weed in the United States. [2] However, B. alba leaves are edible and can be used as medicinal ...
As originally described in 1753 by Carl Linnaeus, Euphorbia maculata is an herbacous plant with small, oblong opposite leaves. The leaves are pilose, or covered in small thin hairs, and generally have a crenate (scalloped) edge. Each leaf is marked with a small brown spot in the center, giving the plant its common name. [7]
Bidens frondosa is a North American species of flowering plant in the aster family, Asteraceae.It is widespread across much of Canada, the United States, and Mexico [2] [3] [4] It is known in many other parts of the world as an introduced species, including Europe, Asia, Morocco, and New Zealand.
The plant can be found growing in hedges and waste places, limestone scree and as a garden weed. [21] [22] G. aparine prefers moist soils and can exist in areas with poor drainage. It reportedly flourishes in heavy soils with above-average nitrogen and phosphorus content, and prefers soils with a pH value between 5.5 and 8.0.
Weed control is a type of pest control, which attempts to stop or reduce growth of weeds, especially noxious weeds, with the aim of reducing their competition with desired flora and fauna including domesticated plants and livestock, and in natural settings preventing non native species competing with native species.
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Euphorbia hirta (sometimes called asthma-plant [3]) is a pantropical weed, originating from the tropical regions of the Americas. [4] It is a hairy herb that grows in open grasslands, roadsides and pathways. It is widely used in traditional herbal medicine across many cultures, particularly for asthma, skin ailments, and hypertension. [5]