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Cannabis sativa is an annual herbaceous flowering plant. The species was first classified by Carl Linnaeus in 1753. [1] The specific epithet sativa means 'cultivated'. Indigenous to Eastern Asia, the plant is now of cosmopolitan distribution due to widespread cultivation. [2]
420, 4:20 or 4/20 (pronounced four-twenty) is cannabis culture slang for marijuana and hashish consumption, especially smoking around the time 4:20 p.m. (16:20). It also refers to cannabis -oriented celebrations that take place annually on April 20 (4/20 in U.S. date form).
Cannabis strains are either pure or hybrid varieties of the plant genus Cannabis, which encompasses the species C. sativa, C. indica, and C. ruderalis . Varieties are developed to intensify specific characteristics of the plant, or to differentiate the strain for the purposes of marketing or to make it more effective as a drug.
Senna, the sennas, is a large genus of flowering plants in the legume family ( Fabaceae, subfamily Caesalpinioideae, [2] tribe Cassieae ser. Aphyllae [3] ). This diverse genus is native throughout the tropics, with a small number of species in temperate regions. The number of species is estimated to be from about 260 [4] to 350. [5]
The plant is also known as hemp, although this term is often used to refer only to varieties of Cannabis cultivated for non-drug use. Cannabis has long been used for hemp fibre , hemp seeds and their oils , hemp leaves for use as vegetables and as juice , medicinal purposes , and as a recreational drug .
Chenopodium album is a fast-growing annual plant in the flowering plant family Amaranthaceae. Though cultivated in some regions, the plant is elsewhere considered a weed. Common names include lamb's quarters, melde, goosefoot, wild spinach and fat-hen, though the latter two are also applied to other species of the genus Chenopodium, for which ...
Gutierrezia sarothrae is a perennial subshrub that ranges from 20 to 100 centimetres (8 to inches) in height. The stems are green to brown, bushy, and herbaceous, and branch upwards from a woody base. [3] The stems die back during dormancy, giving the plant its broom-like appearance. [3]
Salvinia molesta, commonly known as giant salvinia, or as kariba weed after it infested a large portion of Lake Kariba between Zimbabwe and Zambia, is an aquatic fern, native to south-eastern Brazil. [1] It is a free-floating plant that does not attach to the soil, but instead remains buoyant on the surface of a body of water.