Clematis douglasii f. brevisepala Kuntze
This is a synonym of
Clematis hirsutissima Pursh
Clematis douglasii f. brevisepala Kuntze appears in other Kew resources:
First published in Verh. Bot. Vereins Prov. Brandenburg 26: 180 (1885)
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/
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