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This genus is accepted, and its native range is SW. .U.S.A. to N. Mexico.
A specimen from Kew's Herbarium

Doubtfully present in:

Oregon

Native to:

Arizona, California, Mexican Pacific Is., Mexico Northeast, Mexico Northwest, Nevada, Utah

Pterostegia Fisch. & C.A.Mey. appears in other Kew resources:

First published in Index Seminum (LE, Petropolitanus) 2: 48 (1836)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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