Compositae taxon details
Helianthus occidentalis Riddell
Helianthus occidentalis var. occidentalis Cronquist · unaccepted
- Subspecies Helianthus occidentalis subsp. occidentalis Riddell
- Subspecies Helianthus occidentalis subsp. plantagineus (Torr. & A.Gray) Shinners
- Subspecies Helianthus occidentalis subsp. plantagineus (Torr. & A.Gray) Heiser
- Variety Helianthus occidentalis var. dowellianus (M.A.Curtis) Torr. & A.Gray accepted as Helianthus occidentalis subsp. occidentalis Riddell
- Variety Helianthus occidentalis var. occidentalis Cronquist accepted as Helianthus occidentalis Riddell
- Variety Helianthus occidentalis var. plantagineus Torr. & A.Gray accepted as Helianthus occidentalis subsp. plantagineus (Torr. & A.Gray) Shinners
- Variety Helianthus occidentalis var. illinoensis (Gleason) F.C.Gates (uncertain > unassessed)
Not documented
Note 29 Aug 1892, s.n, W.C.Werner, isotype IND,...
Unreviewed
Type material 29 Aug 1892, s.n, W.C.Werner, isotype IND, isotype NY, neotype OS [details]
LSID urn:lsid:compositae.org:names:09C00DDE-ADEC-4C94-95E3-D93FCE803A25
Taxonomy reprinted in Suppl. Cat. Ohio plants 13 (Apr 1836)
LSID urn:lsid:compositae.org:names:09C00DDE-ADEC-4C94-95E3-D93FCE803A25 [details]
Taxonomy reprinted in Suppl. Cat. Ohio plants 13 (Apr 1836)
Taxonomy reprinted in Suppl. Cat. Ohio plants 13 (Apr 1836) [details]
Compositae Working Group (CWG) (2025). Global Compositae Database. Helianthus occidentalis Riddell. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1110451 on 2025-04-23
Date
action
by
original description
(of Helianthus occidentalis var. occidentalis Cronquist) (1945). Rhodora 47
page(s): 399 [details]
page(s): 399 [details]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
LSID urn:lsid:compositae.org:names:09C00DDE-ADEC-4C94-95E3-D93FCE803A25 [details]Taxonomy reprinted in Suppl. Cat. Ohio plants 13 (Apr 1836) [details]
Type material 29 Aug 1892, s.n, W.C.Werner, isotype IND, isotype NY, neotype OS [details]
