1. Family: Rubiaceae Juss.
    1. Houstonia L.

      1. This genus is accepted, and its native range is N. America.

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    Distribution

    Native to:

    Alabama, Alberta, Arizona, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Manitoba, Maryland, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southwest, Michigan, Mississippi, Missouri, New Brunswick, New Hampshire, New Mexico, New York, Newfoundland, North Carolina, Nova Scotia, Ohio, Oklahoma, Ontario, Pennsylvania, Québec, Saskatchewan, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, Wisconsin

    Introduced into:

    Cuba

    Houstonia L. appears in other Kew resources:

    First published in Sp. Pl.: 105 (1753)

    Accepted by

    • Terrell, E.E. (2007). Relationships of Houstonia prostrata (Rubiaceae) of Mexico and Arizona and a review of Houstonia subgebera and sections Journal of the Botanical Research Institute of Texas 1: 109-119.
    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Sources

    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