Machaeranthera tortifolia (Torr. & A.Gray) Cronquist & D.D.Keck

, Brittonia 9: 239 (1957).
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:148435-2
Publication
Brittonia; a Series of Botanical Papers. New York, NY
Collation
9: 239
Family as entered in IPNI
Asteraceae

Links

Nomenclatural link
Haplopappus tortifolius Torr. & A.Gray, Boston J. Nat. Hist. 5: 109 (1845).
Same citation as
Machaeranthera tortifolia (Torr. & A.Gray) Cronquist & D.D.Keck, Brittonia 9(4): 239 (1957).