Walcott, M.V., North American wild flowers (1925-1927)
N. Amer. Wild Fl.

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vol. 3

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t. 189

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xx Petasites frigidus (L.) Fr.

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name cited:
Petasites hyperboreus Rydb.
name recognized:
xx Petasites frigidus (L.) Fr.
name recognized (basionym):
- Tussilago frigida L.

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family: Compositae

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epithet cited: hyperboreus,-a,-um

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epithet recognized: frigidus,-a,-um

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Illustration contributed by:
Smithsonian Institute, Washington, D.C., U.S.A.

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link to this page:
http://www.plantillustrations.org/illustration.php?id_illustration=177872

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contact about this record

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synonyms:

homotypic synonyms:
Nardosmia frigida (L.) Hook.; Petasites frigidus var. frigidus (L.) Fr.; Tussilago frigida L.;
heterotypic synonyms:
Nardosmia angulosa Cass.; Nardosmia angulosa Kuprian.; Nardosmia nivalis (B.D.Greene) Jurtzev;