Machaeranthera canescens var. pygmaea A.Gray
This is a synonym of
Dieteria canescens (Pursh) Nutt.
Machaeranthera canescens var. pygmaea A.Gray appears in other Kew resources:
First published in Smithsonian Contr. Knowl. 5(6): 74 (1853)
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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