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  1. Family: Pontederiaceae Kunth
    1. Heteranthera Ruiz & Pav.

      1. This genus is accepted, and its native range is America, Tropical & S. Africa, Madagascar.

    [FTEA]

    Pontederiaceae, B. Verdcourt. Flora of Tropical East Africa. 1968

    Habit
    Aquatic herbs; lower stems creeping and rooting in the mud
    Leaves
    Leaves either all linear and submerged, or ovate or reniform and floating, sessile, or petioles long, sheathing the stem at the base; flowering stems bearing an apical leaf, the sheath of which encloses the membranous spathe
    Flowers
    Flowers rather small, solitary or several, arranged in a spike subtended by the spathe; also one or more cleistogamous flowers enclosed in the spathe or sometimes mingled with the normal flowers
    Perianth
    Perianth almost regular, funnel-shaped or salver-shaped, divided into 6 equal oblong spreading lobes
    Stamens
    Stamens 3 in normal flowers, sometimes solitary in cleistogamous flowers, inserted at the throat of the perianth-tube, exserted and unequal
    Pistil
    Ovary unilocular with 3 parietal placentas or imperfectly 3-locular; ovules numerous; style filiform; stigma thickened
    Fruits
    Capsule oblong or linear with thin pericarp
    Seeds
    Seeds numerous, ovoid, ribbed.

    Images

    Distribution

    Native to:

    Alabama, Angola, Argentina Northeast, Argentina Northwest, Arizona, Arkansas, Benin, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Burkina, California, Cameroon, Central African Repu, Chad, Colombia, Colorado, Connecticut, Costa Rica, Cuba, Delaware, District of Columbia, Dominican Republic, Ecuador, El Salvador, Florida, Gabon, Georgia, Ghana, Guatemala, Guinea, Guinea-Bissau, Haiti, Honduras, Illinois, Indiana, Iowa, Ivory Coast, Jamaica, Kansas, Kentucky, Kenya, Leeward Is., Liberia, Louisiana, Madagascar, Malawi, Mali, Manitoba, Maryland, Massachusetts, Mauritania, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mozambique, Namibia, Nebraska, Netherlands Antilles, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Nicaragua, Niger, Nigeria, North Carolina, North Dakota, Northern Provinces, Ohio, Oklahoma, Ontario, Oregon, Panamá, Paraguay, Pennsylvania, Peru, Puerto Rico, Québec, Rwanda, Senegal, Sierra Leone, South Carolina, South Dakota, Sudan, Tanzania, Tennessee, Texas, Togo, Uganda, Uruguay, Venezuela, Venezuelan Antilles, Vermont, Virginia, Washington, West Virginia, Wisconsin, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Greece, Hawaii, Italy, Japan, Portugal, Sardegna, Spain

    Accepted Species

    Synonyms

    Other Data

    Heteranthera Ruiz & Pav. appears in other Kew resources:

    Bibliography

    First published in Fl. Peruv. Prodr.: 9 (1794)

    Accepted by

    • Castroviejo, S. & al. (eds.) (2008). Flora Iberica 18: 1-420. Real Jardín Botánico, CSIC, Madrid.
    • Govaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa

    • F.T.A. 8: 2 Nom. cons.
    • Prod. 9, t. 2 (1794)

    Flora of Tropical East Africa

    • Solms in A.DC, Mon. Phan. 4: 516–522 (1883), nom. conserv.
    • Fl. Peruv. et Chil. Prodr.: 9, t. 2 (1794)

    Sources

    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 2020. 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 2020. 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