Catalog Number: US 2086668
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): C. H. Muller
Year Collected: 1939
Locality: Sierra de La Madera., Cuatro Cienegas, Coahuila, Mexico, North America
- Holotype: Muller, C. H. 1942. Amer. Midl. Naturalist. 27: 473.
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