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Cannabis sativa L. - Cannabaceae - hemp, marihuana, pot, (Saat-) Hanf
Erect annual herb, up to 2m tall, native to Central Asia; stems fibrous; leaves palmate; flowers small, uni-sexual, wind-pollinated; fruit a nut, 3.5-5mm long and 2.5-4mm broad, gray (C.sativa subsp. sativa) or 2.5-3.5mm long and 1.8-2.5mm broad, brown (C.sativa subsp. spontanea Serebrjakova = Cannabis ruderalis Janisch.).
Main components of the volatiles from fresh and dried hemp buds are β-myrcene (67%/38%), limonene (both 16%) and linalool (2.8%/5.0%).
[The volatile oil composition of fresh and air-dried buds of Cannabis sativa., Ross, S.A., ElSohly, M.A., Journal of natural products, Vol.59(1), 1996, 49-51]
http://www.medicinalgenomics.com/wp-content/uploads/2011/12/cannabis_volatiles.pdf
Köhler,F.E., Medizinal Pflanzen, vol.1, t.13 (1887) [W.Müller]
http://plantgenera.org/species.php?id_species=190322