Helianthus decapetalus

Classification	Dicots
Family	Asteraceae
Family (Traditional)	Asteraceae
Genus	Helianthus
Species:	Helianthus decapetalus L.
Common Name	Thinleaf Sunflower
Growth Habit	forb
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BFM; Natural Area Presence: FCFSP; Natural Area Presence: FG; Natural Area Presence: GILES; Natural Area Presence: GM; Natural Area Presence: GRSM; Natural Area Presence: LCW; Natural Area Presence: NRG; Natural Area Presence: SGSNA; Natural Area Presence: SM; Natural Area Presence: UCR; Natural Area Presence: WOLF; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: alternate; Leaf Arrangement: opposite; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaflet Margins: serrate; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Yellow; Carpel Number/Pistil: 1; Fruit Complexity: Simple; Fruit Dehiscence: No; Fruit Type: Cypsela; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: head; Inflorescence Types: solitary; Ovary Position: Inferior; Overall Flower Symmetry: Actinomorphic; Overall Flower Symmetry: Zygomorphic; Ovules per Carpel: 1; Perianth Present: Yes; Petal Fusion: Yes; Petal Number: 5; Pistil Complexity: Simple; Pistil Number: 1; Placentation Type: Basal; Sepal Fusion: N/A; Sepal Number: N/A; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 5; Tepal Number: N/A
C value	6
Status	Native; AGCP (UPL), EMP (FACU) (NWPL); TN[SNR] KY[S5] (State Rank); G5 (Global Rank)
Specimen(s)	View and Download Specimen Details »

** Not applicable or data not available.

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Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

State Boundaries
Counties
Counties - Species Present

Ecoregions

Southeastern Plains
- Blackland Prarie
Blue Ridge Mountains
Ridge and Valley
Cumberland Plateau
Cumberland Mountains
Allegheny Plateau

Interior Plateau
- Bluegrass Region
- Nashville Basin
- Pennyroyal Karst Plain
- Western Highland Rim
- Eastern Highland Rim

Interior River Valleys and Hills
- Shawnee / Caseyville Hills
Mississippi Alluvial Plain
Mississippi Valley Loess Plains
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Synonyms

Synonym	Full Citation
Helianthus decapetalis	Helianthus decapetalis L.

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.

Counties included on distribution map: Ballard (KY), Bell (KY), Carter (KY), Clark (KY), Clinton (KY), Harlan (KY), Jackson (KY), Jefferson (KY), Knox (KY), Letcher (KY), Lewis (KY), Lincoln (KY), Livingston (KY), McCracken (KY), McCreary (KY), Madison (KY), Marion (KY), Marshall (KY), Menifee (KY), Montgomery (KY), Perry (KY), Powell (KY), Rockcastle (KY), Whitley (KY), Woodford (KY), Carter (TN), Cocke (TN), Decatur (TN), Giles (TN), Greene (TN), Grundy (TN), Hamilton (TN), Hancock (TN), Hardin (TN), Hawkins (TN), Haywood (TN), Hickman (TN), Humphreys (TN), Jackson (TN), Knox (TN), Madison (TN), Marion (TN), Maury (TN), Perry (TN), Polk (TN), Putnam (TN), Roane (TN), Scott (TN), Sullivan (TN), Unicoi (TN), Union (TN), Van Buren (TN), Washington (TN), Wayne (TN), Weakley (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, EKY, ETSU, HTTU, MEM, MTSU, TENN, UCHT, UOS, VDB

Range of years during which specimens were collected: 1897 - 2015

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
31234100239183	Marion	Kentucky	14 Aug 1994	M. H. McGuffey 65	EKY Helianthus decapetalus
31234100239241	Montgomery	Kentucky	17 Sep 1984	Julian Campbell 1372	EKY Helianthus decapetalus
31234100239159	Knox	Kentucky	17 Aug 1993	Deborah White 31	EKY Helianthus decapetalus
31234100239134	Harlan	Kentucky	14 Aug 1998	Ronald L. Jones 8632	EKY Helianthus decapetalus
31234100239233	Menifee	Kentucky	24 Jul 1989	Carol Hanley 75	EKY Helianthus decapetalus
31234100239100	Carter	Kentucky	29 Jul 1998	Ronald L. Jones 8539	EKY Helianthus decapetalus
31234100239274	Woodford	Kentucky	30 Sep 1978	J. Stuart Lassetter 3330	EKY Helianthus decapetalus
31234100239209	Marshall	Kentucky	17 Sep 1969	Raymond Athey 824	EKY Helianthus decapetalus
31234100239126	Harlan	Kentucky	19 Aug 1998	Ronald L. Jones 8743	EKY Helianthus decapetalus
31234100239175	Lincoln	Kentucky	04 Aug 1988	Bruce Hoagland 546	EKY Helianthus decapetalus
31234100239258	Perry	Kentucky	21 Jul 1982	Ronald L. Jones 3851	EKY Helianthus decapetalus
BEREA007599	Bell	Kentucky			BEREA Helianthus decapetalus
BEREA007598	Bell	Kentucky			BEREA Helianthus decapetalus
BEREA007602	Lewis	Kentucky			BEREA Helianthus decapetalus
BEREA007600	Clark	Kentucky			BEREA Helianthus decapetalus
BEREA007603	Madison	Kentucky			BEREA Helianthus decapetalus
BEREA007606	Rockcastle	Kentucky			BEREA Helianthus decapetalus
BEREA007605	Rockcastle	Kentucky			BEREA Helianthus decapetalus
BEREA007604	Madison	Kentucky			BEREA Helianthus decapetalus
BEREA007601	Lewis	Kentucky			BEREA Helianthus decapetalus
N/A	Unicoi	Tennessee	16 Oct 2011	Frosty Levy	ETSU Helianthus decapetalus
ETSU005297	Unicoi	Tennessee	01 Oct 2011	Frosty Levy	ETSU Helianthus decapetalus
ETSU005562	Greene	Tennessee	27 Aug 2011	Frosty Levy	ETSU Helianthus decapetalus
ETSU005818	Unicoi	Tennessee	29 Sep 2015	Frosty Levy	ETSU Helianthus decapetalus
ETSU005561	Greene	Tennessee	27 Aug 2011	Frosty Levy	ETSU Helianthus decapetalus
ETSU005563	Greene	Tennessee	27 Aug 2011	Frosty Levy	ETSU Helianthus decapetalus
N/A	Unicoi	Tennessee	14 Aug 2015	Frosty Levy	ETSU Helianthus decapetalus
ETSU005926	Unicoi	Tennessee	02 Aug 2015	Frosty Levy	ETSU Helianthus decapetalus
ETSU005302	Unicoi	Tennessee	01 Oct 2011	Frosty Levy	ETSU Helianthus decapetalus
ETSU007052	Unicoi	Tennessee	27 Aug 2009	Frosty Levy	ETSU Helianthus decapetalus
ETSU007051	Unicoi	Tennessee	27 Aug 2009	Frosty Levy	ETSU Helianthus decapetalus
ETSU008048	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU005591	Unicoi	Tennessee	06 Aug 2011	Frosty Levy	ETSU Helianthus decapetalus
N/A	Unicoi	Tennessee	31 Jul 2010	Frosty Levy	ETSU Helianthus decapetalus
ETSU005904	Unicoi	Tennessee	05 Aug 2015	Frosty Levy	ETSU Helianthus decapetalus
N/A	Carter	Tennessee	23 Aug 2014	Frosty Levy	ETSU Helianthus decapetalus
ETSU005889	Carter	Tennessee	09 Oct 2015	Frosty Levy	ETSU Helianthus decapetalus
ETSU005890	Carter	Tennessee	09 Oct 2015	Frosty Levy	ETSU Helianthus decapetalus
N/A	Unicoi	Tennessee	01 Oct 2011	Frosty Levy	ETSU Helianthus decapetalus
N/A	Unicoi	Tennessee	28 Aug 2010	Frosty Levy	ETSU Helianthus decapetalus
N/A	Unicoi	Tennessee	31 Jul 2010	Frosty Levy	ETSU Helianthus decapetalus
TENN-V-0229994	Polk	Tennessee			TENN Helianthus decapetalus
TENN-V-0229986	Perry	Tennessee			TENN Helianthus decapetalus
TENN-V-0230006	Wayne	Tennessee			TENN Helianthus decapetalus
31234100239118	Clinton	Kentucky	11 Aug 1999	Mark A. Gorton 99-1112	EKY Helianthus decapetalus
31234100239217	McCreary	Kentucky	11 Oct 1999	Ronald L. Jones 9213	EKY Helianthus decapetalus
31234100239191	Marion	Kentucky	14 Aug 1994	M. H. McGuffey 64	EKY Helianthus decapetalus
31234100239142	Jackson	Kentucky	26 Aug 1997	Ronald L. Jones 8199	EKY Helianthus decapetalus
31234100239266	Powell	Kentucky	18 Sep 1988	R. C. Clark 22079	EKY Helianthus decapetalus
31234100239225	Menifee	Kentucky	17 Sep 1988	R. C. Clark 22991	EKY Helianthus decapetalus
31234100239167	Letcher	Kentucky	05 Aug 1978	Jeffrey D. Sole 434	EKY Helianthus decapetalus
TENN-V-0229978	Hardin	Tennessee			TENN Helianthus decapetalus
TENN-V-0229976	Greene	Tennessee			TENN Helianthus decapetalus
TENN-V-0229985	Maury	Tennessee			TENN Helianthus decapetalus
APSC0091891	McCreary	Kentucky			APSC Helianthus decapetalus
HTTU003413	Putnam	Tennessee			HTTU Helianthus decapetalis
UCHT029227	Hamilton	Tennessee			UCHT Helianthus decapetalus
UCHT029225	Hamilton	Tennessee			UCHT Helianthus decapetalus
UCHT029228	Hamilton	Tennessee			UCHT Helianthus decapetalus
TENN-V-0229999	Union	Tennessee			TENN Helianthus decapetalus
TENN-V-0229984	Madison	Tennessee			TENN Helianthus decapetalus
TENN-V-0229983	Knox	Tennessee			TENN Helianthus decapetalus
TENN-V-0230000	Van Buren	Tennessee			TENN Helianthus decapetalus
TENN-V-0229987	Perry	Tennessee			TENN Helianthus decapetalus
TENN-V-0229992	Polk	Tennessee			TENN Helianthus decapetalus
TENN-V-0229974	Giles	Tennessee			TENN Helianthus decapetalus
TENN-V-0229998	Sullivan	Tennessee			TENN Helianthus decapetalus
TENN-V-0229972	Giles	Tennessee			TENN Helianthus decapetalus
APSC0116352	Bell	Kentucky			APSC Helianthus decapetalus
UOS00967	Van Buren	Tennessee	21 Jul 2001	Chris A. Fleming	UOS Helianthus decapetalus
ETSU034126d	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU012370	Unicoi	Tennessee		11111	ETSU Helianthus decapetalus
ETSU012368	Greene	Tennessee		RF2635	ETSU Helianthus decapetalus
MEM006420	Livingston	Kentucky	30 Sep 1968	Raymond Athey 505	MEM Helianthus decapetalus
TENN-V-0229995	Polk	Tennessee			TENN Helianthus decapetalus
TENN-V-0230004	Wayne	Tennessee			TENN Helianthus decapetalus
TENN-V-0230007	Weakley	Tennessee			TENN Helianthus decapetalus
TENN-V-0230003	Washington	Tennessee			TENN Helianthus decapetalus
TENN-V-0229990	Polk	Tennessee			TENN Helianthus decapetalus
TENN-V-0229993	Polk	Tennessee			TENN Helianthus decapetalus
APSC0115983	Whitley	Kentucky			APSC Helianthus decapetalus
APSC0053644	Hickman	Tennessee			APSC Helianthus decapetalus
APSC0121642	Harlan	Kentucky			APSC Helianthus decapetalus
ETSU012369	Unicoi	Tennessee		15439	ETSU Helianthus decapetalus
ETSU034128	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU012367	Greene	Tennessee		RF2634	ETSU Helianthus decapetalus
ETSU012372	Sullivan	Tennessee			ETSU Helianthus decapetalus
MEM005398	Livingston	Kentucky	06 Sep 1970	Raymond Athey 1224	MEM Helianthus decapetalus
BRIT277332	Harlan	Kentucky			VDB Helianthus decapetalus
TENN-V-0229982	Jackson	Tennessee			TENN Helianthus decapetalus
TENN-V-0230001	Van Buren	Tennessee			TENN Helianthus decapetalus
TENN-V-0229970	Carter	Tennessee			TENN Helianthus decapetalus
TENN-V-0229991	Polk	Tennessee			TENN Helianthus decapetalus
TENN-V-0229988	Perry	Tennessee			TENN Helianthus decapetalus
APSC0053645	Hickman	Tennessee			APSC Helianthus decapetalus
APSC0076820	McCreary	Kentucky			APSC Helianthus decapetalus
APSC0115834	Jefferson	Kentucky			APSC Helianthus decapetalus
UCHT029224	Hamilton	Tennessee			UCHT Helianthus decapetalus
N/A	Cocke	Tennessee	01 Sep 1897	Thos H. Kearney 789	UCHT Helianthus decapetalis
ETSU031044	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU034127	Carter	Tennessee			ETSU Helianthus decapetalus
MEM012782	Ballard	Kentucky	21 Sep 1977	Raymond Athey 3840	MEM Helianthus decapetalus
BEREA025233	Lewis	Kentucky			BEREA Helianthus decapetalus
ETSU012366	Unicoi	Tennessee		RF2746	ETSU Helianthus decapetalus
TENN-V-0230002	Van Buren	Tennessee			TENN Helianthus decapetalus
TENN-V-0229996	Roane	Tennessee			TENN Helianthus decapetalus
TENN-V-0229969	Carter	Tennessee			TENN Helianthus decapetalus
TENN-V-0229997	Scott	Tennessee			TENN Helianthus decapetalus
TENN-V-0229979	Hawkins	Tennessee			TENN Helianthus decapetalus
TENN-V-0229975	Giles	Tennessee			TENN Helianthus decapetalus
TENN-V-0229977	Grundy	Tennessee			TENN Helianthus decapetalus
MTSU021900	Perry	Tennessee	06 Aug 1956	E. Rucker	MTSU Helianthus decapetalus
ETSU012371	Unicoi	Tennessee			ETSU Helianthus decapetalus
ETSU034126c	Carter	Tennessee			ETSU Helianthus decapetalus
TENN-V-0229973	Giles	Tennessee			TENN Helianthus decapetalus
APSC0115977	Whitley	Kentucky			APSC Helianthus decapetalus
APSC0025026	Hancock	Tennessee			APSC Helianthus decapetalus
APSC0025028	Giles	Tennessee			APSC Helianthus decapetalus
APSC0121506	Jefferson	Kentucky			APSC Helianthus decapetalus
APSC0025027	Polk	Tennessee			APSC Helianthus decapetalus
APSC0053643	Hickman	Tennessee			APSC Helianthus decapetalus
N/A	Knox	Tennessee		A. Ruth 682	UCHT Helianthus decapetalis
UCHT040049	Polk	Tennessee			UCHT Helianthus decapetalus
UCHT029226	Hamilton	Tennessee			UCHT Helianthus decapetalus
ETSU034124	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU034126a	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU009446	Carter	Tennessee		15787	ETSU Helianthus decapetalus
N/A	Knox	Tennessee		A. Ruth 682	UCHT Helianthus decapetalis
TENN-V-0229981	Humphreys	Tennessee			TENN Helianthus decapetalus
TENN-V-0229971	Decatur	Tennessee			TENN Helianthus decapetalus
APSC0116348	Harlan	Kentucky	15 Aug 1982	Max Medley	APSC Helianthus decapetalus
APSC0053642	Hickman	Tennessee			APSC Helianthus decapetalus
APSC0091890	McCreary	Kentucky			APSC Helianthus decapetalus
APSC0121641	Harlan	Kentucky			APSC Helianthus decapetalus
ETSU034129	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU012365	Unicoi	Tennessee		RF2784	ETSU Helianthus decapetalus
UCHT041083	Marion	Tennessee			UCHT Helianthus decapetalus
TENN-V-0231457	Whitley	Kentucky			TENN Helianthus decapetalus
TENN-V-0229980	Haywood	Tennessee			TENN Helianthus decapetalus
TENN-V-0229989	Polk	Tennessee			TENN Helianthus decapetalus
TENN-V-0230005	Wayne	Tennessee			TENN Helianthus decapetalus
ETSU012364	Carter	Tennessee		14740	ETSU Helianthus decapetalus
ETSU034126b	Carter	Tennessee			ETSU Helianthus decapetalus
ETSU012373	Unicoi	Tennessee			ETSU Helianthus decapetalus
MEM006807	McCracken	Kentucky	28 Sep 1972	Raymond Athey 2178	MEM Helianthus decapetalus

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Helianthus decapetalus

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos