1. Family: Apiaceae Lindl.
    1. Heracleum L.

      1. This genus is accepted, and is native to Europe, Asia-Tropical, Africa, Northern America and Asia-Temperate..

    [FTEA]

    Umbelliferae, C.C. Townsend. Flora of Tropical East Africa. 1989

    Habit
    Perennial or biennial herbs, dwarf to gigantic, glabrous or more frequently ± densely furnished with unicellular, simple and subglandular hairs
    Leaves
    Leaves simple and lobed to 1–2-pinnately or ternately divided with usually broad, dentate-incised to pinnatifid segments; sheaths often large, soft
    Inflorescences
    Umbels numerous, compound, pedunculate; involucre present or absent; involucel usually of numerous narrow bracteoles
    Flowers
    Flowers polygamous
    Calyx
    Calyx-teeth present, small and usually deciduous
    Corolla
    Petals white to creamy, greenish or pink, the outer petals of the outer partial umbels slightly to very conspicuously radiate, the inner with an inflexed tip
    Fruits
    Fruit very strongly dorsally compressed with thickened marginal wings and 3 filiform but often quite prominent dorsal ribs, glabrous to hairy; stylopodia conical, from a broad crenate-margined discoid base; vittae solitary in the valleculae, 0–2 on the commissure, slender to clavate, usually reaching most of the way down each mericarp but sometimes short; carpophore deeply bifid
    Seeds
    Endosperm very flattened, shallowly rounded dorsally or sulcate at the vittae, flat or slightly concave centrally on the commissural face.
    [FZ]

    Umbelliferae, J. F. M. Cannon. Flora Zambesiaca 4. 1978

    Habit
    Perennial, biennial or annual herbs.
    Leaves
    Leaves pinnately divided, usually with broad segments.
    Inflorescences
    Umbels compound; bracts 0; bracteoles several.
    Calyx
    Calyx teeth minute or obsolete, unequal.
    Corolla
    Petals white (sometimes flushed with pink, especially in bud), often markedly unequal and radiate, those on the outer margin of the umbel being much larger than those on the inside, the whole umbel therefore tending to function like a capitulum in attracting insects, although the individual flowers remain quite distinct.
    Fruits
    Fruit orbicular to broadly obovate, very strongly dorsally compressed, with a broad commissure. Marginal ridges expanded to form a broad wing, the dorsal ones filiform; wings somewhat thickened and closely appressed to those of the opposing mericarp.
    Vittae
    Vittae solitary in the intervals, clearly visible from the exterior, and tending to be club-shaped, narrowing towards the base, with 2 in the commissural face.

    Images

    Distribution

    Native to:

    Afghanistan, Alaska, Albania, Aleutian Is., Algeria, Altay, Amur, Austria, Belgium, Bulgaria, Buryatiya, Central European Rus, Chita, Colorado, Czechoslovakia, Denmark, East European Russia, Eritrea, Ethiopia, Finland, France, Germany, Great Britain, Greece, Hungary, Illinois, India, Ireland, Irkutsk, Italy, Kamchatka, Kazakhstan, Kentucky, Kenya, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Krym, Kuril Is., Malawi, Mongolia, Morocco, Netherlands, New Mexico, North European Russi, Northwest European R, Norway, Pakistan, Poland, Portugal, Primorye, Romania, Sakhalin, Sicilia, Spain, Sudan, Switzerland, Tadzhikistan, Tanzania, Tennessee, Transcaucasus, Turkey, Turkey-in-Europe, Tuva, Uganda, Ukraine, Uzbekistan, Vermont, West Himalaya, West Siberia, Yakutskiya, Yugoslavia, Zaïre

    Introduced into:

    Argentina South, Haiti, New Zealand North, New Zealand South, Sweden

    Heracleum L. appears in other Kew resources:

    First published in Sp. Pl.: 249 (1753)

    Accepted by

    • Tutin, T.G. & al. (eds.) (1968). Flora Europaea 2: 1-469. Cambridge University Press.

    Literature

    Flora Zambesiaca
    • Gen. Pl. ed. 5: 118 (1754).
    • Sp. Pl. 1: 249 (1753)
    Flora of Tropical East Africa
    • L., Gen. Pl., ed. 5: 118 (1754)
    • Sp. Pl.: 249 (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