Aster tanacetifolius var. pygmaeus A.Gray

, Syn. Fl. N. Amer. 1, pt. 2: 206 (1884).
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:24186-2
Publication
Synoptical Flora of North America. New York
Collation
1, pt. 2: 206
Family as entered in IPNI
Asteraceae

Links

Basionym of
Machaeranthera pygmaea (A.Gray) Wooton & Standl., Contr. U.S. Natl. Herb. 16(4): 189 (1913).
Nomenclatural link
Machaeranthera canescens var. pygmaea A.Gray, Smithsonian Contr. Knowl. 5, Art. 6: 74 (1853).