1. Family: Penthoraceae Rydb. ex Britton
    1. Penthorum L.

      1. This genus is accepted, and is native to Laos, Northern America and Asia-Temperate..

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    Distribution

    Native to:

    Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Japan, Kansas, Kentucky, Khabarovsk, Korea, Laos, Louisiana, Maine, Manitoba, Maryland, Masachusettes, Michigan, Minnesota, Mississippi, Missouri, Nansei-shoto, Nebraska, New Brunswick, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Ontario, Pennsylvania, Primorye, Québec, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, West Virginia, Wisconsin

    Introduced into:

    British Columbia, Oregon, Washington

    Penthorum L. appears in other Kew resources:

    First published in Sp. Pl.: 432 (1753)

    Accepted by

    • Kharkevich, S.S. (ed.) (1989). Plantae Vasculares Orientalis Extremi Sovietici 4: 1-380. Nauka, Leningrad.

    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