write about the any crop and mention it genus, species, etc .
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Answers
Explanation:
A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks. Taxonomically, the term "weed" has no botanical significance, because a plant that is a weed in one context is not a weed when growing in a situation where it is in fact wanted, and where one species of plant is a valuable crop plant, another species in the same genus might be a serious weed, such as a wild bramble growing among cultivated loganberries. In the same way, volunteer crops (plants) are regarded as weeds in a subsequent crop. Many plants that people widely regard as weeds also are intentionally grown in gardens and other cultivated settings, in which case they are sometimes called beneficial weeds. The term weed also is applied to any plant that grows or reproduces aggressively, or is invasive outside its native habitat.[1] More broadly "weed" occasionally is applied pejoratively to species outside the plant kingdom, species that can survive in diverse environments and reproduce quickly; in this sense it has even been applied to humans.
Answer:
Jasmin is a large genus of climbing, trailing or erect shrubs, widely distributed in the warmer parts of the world.
Jasmines are fairly hardy, drought-resistant plants thriving well under both tropical and temperate conditions. Some of them have been introduced into the milder climates of Europe and have been found to stand temperatures as low as 50'’F. They grow in any soil, but give good results in rich loam or dry sandy oil with irrigation facilties; in clay soil.
Classification:
Kingdom: Plantae – Plants
Subkingdom: Tracheobionta – Vascular plants
Superdivision: Spermatophyta – Seed plants
Division: Magnoliophyta – Flowering plants
Class: Magnoliopsida – Dicotyledons
Subclass: Asteridae
Order: Scrophulariales
Family: Oleaceae – Olive family
Genus: Jasminum L. – jasmine
Further it has twelve species:
Species Jasminum dichotomum Vahl – Gold Coast jasmine
Species Jasminum elongatum (Bergius) Willd.
Species Jasminum fluminense Vell. – jazmin de trapo
Species Jasminum laurifolium Roxb.
Species Jasminum marianum DC.
Species Jasminum mesnyi Hance – Japanese jasmine
Species Jasminum multiflorum (Burm. f.) Andrews – star jasmine
Species Jasminum nitidum Skan – angelwing jasmine
Species Jasminum nudiflorum Lindl. – winter jasmine
Species Jasminum officinale L. – poet's jasmine
Species Jasminum polyanthum Franch. – pink jasmine
Species Jasminum sambac (L.) Aiton – Arabian jasmine