A weed of cultivation is any plant that is well-adapted to environments in which land is cultivated for growing some other plant.
Many such weeds are quite specialised and can only thrive and reproduce where the ground has been broken by plough or spade. They are invariably annual and reproduction is by seed alone, which can in many species lie dormant for years in the soil until brought to the surface during cultivation. They have fast reproduction cycles, usually in one year from seed to seed, though some species can have more than one generation in one season. A few species such as groundsel (Senecio vulgaris), shepherd's purse (Capsella bursa-pastoris), red deadnettle (Lamium purpureum) and chickweed (Stellaria media) can survive unharmed through very cold weather and are often able to seed even in winter.
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applied to humans. Weed control is important in agriculture and horticulture. Methods include hand cultivation with hoes, powered cultivation with cultivators...
with native species. Weed control is important in agriculture. Methods include hand cultivation with hoes, powered cultivation with cultivators, smothering...
is a species of flowering plant in the family Asteraceae, native to Mexico, Guatemala, and Honduras. It is a common weedofcultivation. "Simsia amplexicaulis...
usually grows in the same production zones as wheat and was a serious weedofcultivation until modern sorting machinery enabled darnel seeds to be separated...
A somewhat ruderal species, it is a minor weedofcultivation. "Valerianella vesicaria (L.) Mill". Plants of the World Online. Royal Botanic Gardens, Kew...
range was east of the Mediterranean Sea, but now is obscured by ancient introductions and cultivation, being naturalized across much of Europe and Asia...
Peru, Uruguay and Venezuela. It has been introduced elsewhere as a weedofcultivation. It has naturalised across the globe, from Africa, Europe, Asia,...
West Africa, and parts of Australia. Common names include Siam weed, rouge plant, Christmas bush, jack in the box, devil weed, common floss flower, hagunoy...
crop water productivity crop weed Any weed or undesirable plant that grows among crop plants. See also weedofcultivation. crop wild relative (CWR) A...
fairy wings, horny goat weed, or yin yang huo (Chinese: 淫羊藿; pinyin: Yínyánghùo; Wade–Giles: Yin²-yang²-huo⁴), is a genus of flowering plants in the family...
islands of the Caribbean. A perennial herb reaching 2 m (6 ft) and becoming woody at maturity, it is found in a wide variety of habitats, and is a weedof cultivation...
Southeast Asia, Hawaii, and the USA. It is considered a moderate weedof rice cultivation in Asia. in Narsapur, Medak district. in Narsapur, Medak district...
some of those areas, it has escaped from cultivation and become a weed species. The genus name Hesperis was probably given because the scent of the flowers...
federal noxious weed, though some states, like Texas, have acknowledged its status as a vegetable and allow it to be grown. In cultivation, most are treated...
Eutrochium purpureum, commonly known as purple Joe-Pye weed or sweetscented joe pye weed, is an herbaceous perennial plant in the family Asteraceae. It...
A number of plant diseases affect this genus. The starkly differing flower shapes found in this genus, combined with the easy cultivationof many species...
introduced species and sometimes a noxious weed.[citation needed] It can be a serious weedof rice cultivation in Asia. In Khmer language, it is called...
common names jimsonweed (jimson weed), devil's trumpet, or thornapple, is a poisonous flowering plant in the Daturae tribe of the nightshade family Solanaceae...
majus, commonly called bishop's flower, false bishop's weed, laceflower, bullwort, etc., is a member of the carrot family Apiaceae. The plant, which has white...
The legality of cannabis for medical and recreational use varies by country, in terms of its possession, distribution, and cultivation, and (in regards...
Euphorbia peplus (petty spurge, radium weed, cancer weed, or milkweed), is a species of Euphorbia, native to most of Europe, northern Africa and western...
Cultivationof cannabis is the production of cannabis infructescences ("buds" or "leaves"). Cultivation techniques for other purposes (such as hemp production)...
butterfly weed, is a species of milkweed native to eastern and southwestern North America. It is commonly known as butterfly weed because of the butterflies...
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