1. Rhamnus tomentella subsp. ursina (Greene) Sawyer

    1. This is a synonym of Frangula californica subsp. ursina (Greene) Kartesz & Gandhi

Rhamnus tomentella subsp. ursina (Greene) Sawyer appears in other Kew resources:

First published in Madroño 40: 65 (1993)

Sources

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