Helianthus nuttallii subsp. rydbergii (Britton) R.W.Long

, Brittonia 18: 77 (1966).
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:119197-2
Species Name
Helianthus nuttallii Torr. & A.Gray, Fl. N. Amer. (Torr. & A. Gray) 2: 324 [-325] (1842).
Publication
Brittonia; a Series of Botanical Papers. New York, NY
Collation
18: 77
Family as entered in IPNI
Asteraceae

Links

Nomenclatural link
Helianthus rydbergii Britton, Man. Fl. N. States [Britton] 993 (-994) (1901).