Rydberg, P.A., monograph of the North American Potentilleae (1898)
Monogr. N. Amer. Potent.
t.
82
name cited:
Horkelia purpurascens S. Watson
name recognized:
Horkelia purpurascens S. Watson
family: Rosaceae
subfamily: Rosoideae
tribe: Potentilleae
epithet:
purpurascens
Illustration contributed by:
New York Botanical Garden, U.S.A.
link to this page:
https://www.plantillustrations.org/illustration.php?id_illustration=211360
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synonyms:
homotypic synonyms:
Ivesia purpurascens (S. Watson) D.D. Keck; Potentilla purpurascens (S. Watson) Greene;