1. Family: Cannabaceae Martinov
    1. Cannabis L.

      1. This genus is accepted, and its native range is Central & W. Asia to China.

    [FTEA]

    Cannabaceae, B. Verdcourt. Flora of Tropical East Africa. 1975

    Habit
    Erect annual aromatic herb
    Leaves
    Leaves alternate, or opposite at the base of the stems, palmately divided into narrow leaflets; stipules linear, acute
    Male
    Male flowers numerous, shortly pedicellate, in lax drooping terminal and axillary panicles; tepals free, oblong, spreading or reflexed; anthers at length pendulous
    Flowers
    Female flowers fewer, in short erect spikes, leafy below, each flower sessile in the axil of an enveloping bracteole and also with a stipule-like bract; perianth inconspicuous, very thin, closely enveloping the ovoid ovary Male flowers numerous, shortly pedicellate, in lax drooping terminal and axillary panicles; tepals free, oblong, spreading or reflexed; anthers at length pendulous
    Female
    Female flowers fewer, in short erect spikes, leafy below, each flower sessile in the axil of an enveloping bracteole and also with a stipule-like bract; perianth inconspicuous, very thin, closely enveloping the ovoid ovary
    Fruits
    Fruit ovoid, compressed with seed closely conforming to the thin crustaceous pericarp
    Seeds
    Embryo strongly curved; cotyledons fleshy.
    [FZ]

    Cannabaceae, C. M. Wilmot-Dear. Flora Zambesiaca 9:6. 1991

    Habit
    Erect annual aromatic herbs, dioecious with male and female plants dimorphic, or rarely monoecious; indumentum of most parts consisting of minute appressed sollen-based hairs; leaves alternate or opposite at the stem base, palmately loheb or digitately compound, leaflets uneven in size, with serrate margins; stipules lateral, persistent.
    Inflorescences
    Female inflorescences short, compact, not exceeding the leaves; flowers fewer, paired, each subtended by a stipule-like bract and a small green “bracteole” or “calyx” which completely envelopes the ovary and loosely encloses the mature fruit, this enveloping bracteole forming a basally swollen tubular sheath narrowly attenuate at the apex and covered with fine hairs and shortly-stalked or sessile, resinous glands; perianth membranous, undivided, tightly enveloping the ovary and mature fruit (often reduced or absent in cultivated forms), marbled with light and dark areas; stigma-branches densely pubescent, caducous. Male inflorescences laxly cymose-paniculate, bristly-hairy, exceeding the leaves but bearing a few scattered leaves; flowers numerous, shortly pedicellate; perianth lobes free, boat-shaped, spreading or reflexed; stamens pendulous at maturity, filaments short; pistillode 0.
    Fruits
    Fruit a globular to ovoid achene tightly covered by the thin crustaceous perianth, the reticulate venation of the surface visible beneath the perianth.
    Seeds
    Embryo strongly curved, cotyledons fleshy.
    Note
    Easily identified by the light and dark patterning of the perianth layer (where this is present) surrounding the fruit.

    Images

    Distribution

    Native to:

    Afghanistan, Iran, Kazakhstan, Kirgizstan, Pakistan, South European Russi, Tadzhikistan, Turkmenistan, Uzbekistan, Xinjiang

    Introduced into:

    Alabama, Albania, Algeria, Altay, Amur, Andaman Is., Angola, Arkansas, Assam, Austria, Bangladesh, Belarus, Belgium, Benin, Bolivia, Botswana, Bulgaria, Buryatiya, California, Cambodia, Cameroon, Cape Provinces, Central African Repu, Central European Rus, Chad, China North-Central, China South-Central, China Southeast, Chita, Colombia, Colorado, Connecticut, Corse, Cuba, Czechoslovakia, Delaware, Dominican Republic, East Aegean Is., East Himalaya, Ecuador, Eritrea, Ethiopia, Fiji, France, Gambia, Germany, Ghana, Greece, Guinea, Gulf of Guinea Is., Hainan, Haiti, Hungary, Illinois, India, Indiana, Iowa, Iraq, Irkutsk, Italy, Jamaica, Jawa, Kamchatka, Kansas, Kentucky, Kenya, Khabarovsk, Korea, Krasnoyarsk, KwaZulu-Natal, Lebanon-Syria, Leeward Is., Lesotho, Lesser Sunda Is., Magadan, Maine, Malawi, Maryland, Masachusettes, Mauritius, Michigan, Minnesota, Missouri, Morocco, Mozambique, Nebraska, Nepal, New Hampshire, New Jersey, New Mexico, New York, New Zealand North, New Zealand South, Nicaragua, Nicobar Is., North Dakota, Northern Provinces, Northwest European R, Ohio, Oklahoma, Ontario, Pennsylvania, Peru, Poland, Primorye, Puerto Rico, Québec, Rhode I., Romania, Rwanda, Réunion, Sakhalin, Sardegna, Senegal, Sicilia, South Dakota, Spain, Sudan, Switzerland, Tanzania, Tennessee, Tibet, Trinidad-Tobago, Tuva, Uganda, Vermont, Virginia, West Himalaya, West Siberia, West Virginia, Windward Is., Wisconsin, Yakutskiya, Yugoslavia, Zambia, Zaïre, Zimbabwe

    Cannabis L. appears in other Kew resources:

    First published in Sp. Pl.: 1027 (1753)

    Accepted by

    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

    Literature

    Flora of West Tropical Africa
    • —F.T.A. 6, 2: 16.
    Flora Zambesiaca
    • Gen. Pl. ed. 5: 453 (1754).
    • Sp. Pl. 2: 1027 (1753)
    Flora of Tropical East Africa
    • L., Gen. Pl., ed. 5: 453 (1754)
    • Sp. Pl.: 1027 (1753)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0