1. Family: Urticaceae Juss.
    1. Laportea Gaudich.

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

    [FTEA]

    Urticaceae, I. Friis University of Copenhagen, Denmark. Flora of Tropical East Africa. 1989

    Habit
    Annual or perennial herbs or shrubs, monoecious or dioecious
    Stem
    Stems with numerous stinging hairs
    Leaves
    Leaves alternate, petiolate, simple, serrate; cystoliths linear or punctiform; stipules intrapetiolar, fused almost to apex
    Inflorescences
    Inflorescences unisexual, occasionally with a few flowers of opposite sex intermixed, paniculate or appearing spike-like due to very reduced branches, sometimes with “interrupted spikes” due to some internodes being elongated
    Male
    Male flowers usually pedicellate, 4–5-merous, with rudimentary ovary
    Flowers
    Female flowers: pedicel sometimes winged, either laterally or on the dorsal and ventral side (as defined by the symmetry of the flower); tepals 4, unequal, lateral pair usually much larger than the median pair, median pair of unequal size, the dorsal one geniculate or not; staminodes absent; ovary asymmetrical, ovoid, laterally compressed; stigma sessile, filiform, or deeply trifid with filiform branches Male flowers usually pedicellate, 4–5-merous, with rudimentary ovary
    Female
    Female flowers: pedicel sometimes winged, either laterally or on the dorsal and ventral side (as defined by the symmetry of the flower); tepals 4, unequal, lateral pair usually much larger than the median pair, median pair of unequal size, the dorsal one geniculate or not; staminodes absent; ovary asymmetrical, ovoid, laterally compressed; stigma sessile, filiform, or deeply trifid with filiform branches
    Fruits
    Achene compressed, often with characteristic sculpturing on sides, consisting of a ring-like ridge enclosing a ± rugose surface, stipitate and shed separately (sect. Laportea) or sessile and shed with the persistent perianth (sect. Fleurya) .
    [FZ]

    Urticaceae, I. Friis. Flora Zambesiaca 9:6. 1991

    Habit
    Annual or perennial herbs (shrubs outside the Flora Zambesiaca area), monoecious or dioecious with numerous stinging hairs (the hairs sometimes mounted on epidermal protuberances).
    Cystoliths
    Cystoliths linear or punctiform.
    Leaves
    Leaves alternate, petiolate, simple, serrate.
    Stipules
    Stipules intrapetiolar, fused almost to the apex.
    Inflorescences
    Inflorescences mostly unisexual (occasionally a few flowers of opposite sex intermixed), paniculate, sometimes apparently spicate due to reduction of branches, sometimes appearing as interrupted spikes due to elongation of some internodes.
    Flowers
    Female flowers pedicellate, pedicel sometimes winged; tepals 4, unequal, lateral pair usually much larger than the median pair, and median pair of unequal size; staminodes absent; ovary asymmetrical, ovoid, laterally compressed; stigma sessile, filiform, or deeply trifid with filiform branches. Male flowers usually pedicellate, regular, 4–5-merous, stamens equalling tepals in number, rudimentary ovary present.
    Fruits
    Achene compressed, often with a characteristic sculpturing on the sides (consisting of an annular ridge enclosing a ± rugose surface), stipitate and shed separately from the persistent perianth (Sect. Laportea), or sessile and shed with the persistent perianth (Sect. Fleurya).

    Images

    Distribution

    Native to:

    Alabama, Aldabra, Andaman Is., Angola, Arkansas, Bahamas, Bangladesh, Belize, Benin, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cambodia, Cameroon, Cape Provinces, Cape Verde, Central African Repu, Central American Pac, Chad, Christmas I., Cocos (Keeling) Is., Colombia, Congo, Connecticut, Cook Is., Costa Rica, Cuba, Delaware, District of Columbia, Dominican Republic, East Himalaya, Ecuador, El Salvador, Eritrea, Ethiopia, Florida, French Guiana, Gabon, Galápagos, Gambia, Georgia, Ghana, Gilbert Is., Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Haiti, Honduras, Illinois, India, Indiana, Iowa, Ivory Coast, Jamaica, Japan, Jawa, Kansas, Kentucky, Kenya, Korea, Kuril Is., KwaZulu-Natal, Laccadive Is., Laos, Leeward Is., Lesser Sunda Is., Liberia, Line Is., Louisiana, Madagascar, Maine, Malawi, Maldives, Mali, Maluku, Manitoba, Maryland, Masachusettes, Mexico Central, Mexico Gulf, Mexico Northeast, Michigan, Minnesota, Mississippi, Missouri, Mozambique, Myanmar, Nauru, Nebraska, New Brunswick, New Guinea, New Hampshire, New Jersey, New York, Newfoundland, Nicaragua, Nigeria, North Carolina, North Dakota, Northern Provinces, Nova Scotia, Ohio, Oklahoma, Oman, Ontario, Panamá, Pennsylvania, Peru, Philippines, Phoenix Is., Primorye, Puerto Rico, Queensland, Québec, Rhode I., Rwanda, Réunion, Saskatchewan, Senegal, Seychelles, Sierra Leone, Society Is., Solomon Is., South Carolina, South Dakota, Sri Lanka, Sudan, Sumatera, Suriname, Swaziland, Taiwan, Tanzania, Tennessee, Tibet, Togo, Tokelau-Manihiki, Trinidad-Tobago, Uganda, Venezuela, Venezuelan Antilles, Vermont, Virginia, West Himalaya, West Virginia, Windward Is., Wisconsin, Yemen, Zambia, Zaïre, Zimbabwe

    Extinct in:

    Mauritius

    Introduced into:

    Fiji, France, Hawaii, New Caledonia, Niue, Samoa, Tonga, Tuvalu, Vanuatu, Wallis-Futuna Is.

    Laportea Gaudich. appears in other Kew resources:

    First published in Voy. Uranie: 498 (1830)

    Literature

    Flora of West Tropical Africa
    • —F.T.A. 6, 2: 252.
    Flora Zambesiaca
    • Chew in Gard. Bull., Singapore 25: 111–178 (1969) nom. conserv.
    • in Freyc., Voy. Monde, Bot.: 498 (1830).
    Flora of Tropical East Africa
    • Chew in Gard. Bull., Singapore 25: 111 (1969), nom. conserv.
    • G.F.P. 2: 183 (1967)
    • Chew in Gard. Bull., Singapore 21: 200 (1965)
    • Engl. in E. & P. Pf. 3(1): 106 (1888)
    • G.P. 3: 383 (1880)
    • in Freyc., Voy. Monde, Bot.: 498 (1830)

    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 2019. 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 2019. 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