Marijuana
Cannabis sativa
Marijuana,Hemp,Marihuana (marijuana),Pot,Grass,Maryjane,Chanvre,Cannabis,Hashish,Indian Hemp,Marihuana
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Description
Staminate plants usually taller, less robust than pistillate plants. Stems 0.2-6 m. Leaves: petioles 2-7 cm. Leaflet blades mostly 3-9, linear to linear-lanceolate, 3-15 ×\ 0.2-1.7 cm, margins coarsely serrate; surfaces abaxially whitish green with scattered, yellowish brown, resinous dots, strigose, adaxially darker green with large, stiff, bulbous-based conic hairs. Inflorescences numerous. Flowers unisexual, often transitional flowers and flowers of opposite sex developing later. Staminate flowers: pedicels 0.5-3 mm; sepals ovate to lanceolate, 2.5-4 mm, puberulent; stamens caducous after anthesis, somewhat shorter than sepals; filaments 0.5-1 mm. Pistillate flowers ± sessile, enclosed by glandular, beaked bracteole and subtended by bract; perianth appressed to and surrounding base of ovary. Achenes white or greenish, mottled with purple, ovoid, somewhat compressed, 2-5 mm, with ± persistent perianth that sometimes flakes off. 2n = 20.
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Taxonomy
Order
Urticales
Family
Cannabaceae
Genus
Cannabis
Characteristics
Plant Type
Poisonous, A rough, rather rank-smelling, leafy, simple or branched herb 0.9–4.5 m. tall, the male plants taller and more slender, dying soon after flowering, the females stockier and living several months after pollination; stems angular, covered with rather short stiffish hairs.
Flower
Flowers small and green, crowded on axillary clusters, Male and female flowers on different plants or rarely on one plant but then one sex predominating.
Fruit
Achene (“seed ”, actually consisting of the seed with a hard shell tightly covered by the thin ovary wall) ellipsoid or subglobose, slightly compressed, keeled, shiny, 2.5–5 mm. long, 2–3.5 mm. wide, greyish to brownish and usually covered with a pale “ map-like ” network.