Helianthus occidentalis

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:ASTERACEAE
Species:Helianthus occidentalis Riddell
Common Name:Western Sunflower; Few Leaf Sunflower; Naked Stem Sunflower
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:HEOC2
Plant Notes:**
Taxonomic Notes:**
Status:Native, FACU (NWI), S? (State Rank), G5 (Global Rank)
References:**

** Not applicable or data not available.

Classification

FamilyASTERACEAE - Aster family
Genus Helianthus
Species Helianthus occidentalis Riddell - Western Sunflower; Few Leaf Sunflower; Naked Stem Sunflower

Citation

Citation Helianthus occidentalis Riddell, W. J. Med. Phys. Sci. 9(36): 577. 1836.
Basionym: **
Type: USA: OHIO: Franklin Co.: Georgesville, 29 Aug 1892, Werner s.n. (neotype: OSU; isoneotypes: IND, NY). Neotypified by Heiser et al., Mem. Torrey Bot. Club 22: 104. 1969.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Helianthus illinoensis Helianthus illinoensis Gleason, Ohio Naturalist 5: 214. 1904. ILLINOIS: Alexander Co.: Along the Illinois River near Havana,
Helianthus occidentalis subsp. illinoensis Helianthus occidentalis Riddell, subsp. illinoensis (Gleason) F. C. Gates, Bull. Torrey Bot. Club 37: 79. 1910.Helianthus illinoensis Gleason 1904. 
Helianthus dowellianus Helianthus dowellianus M. A. Curtis, Amer. J. Sci. Arts 44: 82. 1843. NORTH CAROLINA: Macon Co.:
Helianthus occidentalis var. dowellianus Helianthus occidentalis Riddell, var. dowellianus (M. A. Curtis) Torrey & A. Gray, Fl. N. Amer. 2: 504. 1843.Helianthus dowellianus M. A. Curtis 1843. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Calhoun, Colbert, Franklin, Mobile

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: ALNHS, AMAL, AUA, JSU, TROY, UNA, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
ALNHS00005436 Calhoun 06 SEP 2017 Barger, T. Wayne
SP#3332		 ALNHS
Helianthus occidentalis Riddell
AMAL00013300 Colbert 26 Jul 1981 Kral, Robert
67600		 AMAL
Helianthus occidentalis Ridd.
AMAL00003980 Calhoun 02 Oct 2010 Spaulding, Daniel D.
13290		 AMAL
Helianthus occidentalis Riddell
AUA000027307 Calhoun 2 Oct 2010 Spaulding, Daniel D.
13290		 AUA
Helianthus Occidentalis Riddell
AMAL00012979 Franklin 27 Jul 1981 Kral, Robert
67678		 AMAL
Helianthus occidentalis Ridd.
UNA00047631 Mobile _ Jul _ Mohr, Charles
s.n.		 UNA
Helianthus occidentalis Riddell
UWAL0010024 Calhoun 02 Oct 2010 Spaulding, Daniel D.
13290		 UWAL
Helianthus occidentalis Riddell
JSU114624 Calhoun 4 Sep 1994 Spaulding, Daniel D.
6144		 JSU
Helianthus occidentalis Riddell
TROY000034735 Calhoun 02 Oct 2010 Spaulding, Daniel D.
13290		 TROY
Helianthus occidentalis Riddell
TROY000045802 Franklin 11 Jul 2009 England, J. Kevin
2117		 TROY
Helianthus occidentalis Riddell
UWAL0000714 Colbert 26 Jul 1981 Kral, Robert
67600		 UWAL
Helianthus occidentalis Ridd.
AMAL00019385 Calhoun 04 Sep 1994 Spaulding, Daniel D.
6144		 AMAL
Helianthus occidentalis Riddell
UWAL0000715 Franklin 27 Jul 1981 Kral, Robert
67578		 UWAL
Helianthus occidentalis Ridd.
UWAL0014394 Franklin 11 Jul 2009 England, J. Kevin
2117		 UWAL
Helianthus occidentalis Riddell
TROY000015662 Franklin 27 Jul 1981 Kral, Robert
67578		 TROY
Helianthus occidentalis Riddell
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