Helianthus silphioides

Classification	Dicots
Family	Asteraceae
Family (Traditional)	Asteraceae
Genus	Helianthus
Species:	Helianthus silphioides Nutt.
Common Name	Rosinweed Sunflower
Growth Habit	forb
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BE; Natural Area Presence: GILES; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Sub-xeric; 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: opposite; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaflet Margins: crenate; Leaflet Margins: entire; 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: corymb/cyme/umbel; Inflorescence Types: head; 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	8
Status	Native; TN[S2S3] KY[S1] (State Rank); G4 (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

No synonyms exist for this species.

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: Calloway (KY), Laurel (KY), McCreary (KY), Warren (KY), Bledsoe (TN), Carroll (TN), Chester (TN), Coffee (TN), Crockett (TN), Grundy (TN), Hamilton (TN), Hardeman (TN), McNairy (TN), Madison (TN), Marion (TN), Van Buren (TN), Weakley (TN)

Herbaria represented by specimen data listed below: APSC, EKY, TENN, UCHT, UOS, VDB

Range of years during which specimens were collected: 1947 - 2005

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
31234100732567	Laurel	Kentucky		Max E. Medley	EKY Helianthus silphioides
31234100732534	Laurel	Kentucky		Max E. Medley	EKY Helianthus silphioides
31234100732542	Laurel	Kentucky		Max E. Medley	EKY Helianthus silphioides
31234100262326	Coffee	Tennessee	30 Aug 1991	Ronald L. Jones 6925	EKY Helianthus silphioides
31234100732518	Laurel	Kentucky		Max E. Medley	EKY Helianthus silphioides
31234100732401	Calloway	Kentucky		Landon E. Mckinney	EKY Helianthus silphioides
31234100737749	Van Buren	Tennessee	19 Aug 1989	H.R. Deselm	EKY Helianthus silphioides
31234100732559	Laurel	Kentucky		Max E. Medley	EKY Helianthus silphioides
31234100732526	Laurel	Kentucky		Max E. Medley	EKY Helianthus silphioides
TENN-V-0230477	Coffee	Tennessee			TENN Helianthus silphioides
TENN-V-0230491	McNairy	Tennessee			TENN Helianthus silphioides
APSC0114410	McNairy	Tennessee			APSC Helianthus silphioides
APSC0116227	McCreary	Kentucky			APSC Helianthus silphioides
BRIT96532		Tennessee			VDB Helianthus silphioides
TENN-V-0230481	Bledsoe	Tennessee			TENN Helianthus silphioides
UCHT039108	Hamilton	Tennessee			UCHT Helianthus silphioides
BRIT96544		Tennessee			VDB Helianthus silphioides
BRIT96539		Tennessee			VDB Helianthus silphioides
TENN-V-0230482	Carroll	Tennessee			TENN Helianthus silphioides
APSC0116294	Calloway	Kentucky			APSC Helianthus silphioides
BRIT96550		Tennessee			VDB Helianthus silphioides
BRIT96542		Tennessee			VDB Helianthus silphioides
TENN-V-0230480	Crockett	Tennessee			TENN Helianthus silphioides
TENN-V-0230476	Coffee	Tennessee			TENN Helianthus silphioides
APSC0116295	Calloway	Kentucky			APSC Helianthus silphioides
BRIT96535		Tennessee			VDB Helianthus silphioides
BRIT96546		Tennessee			VDB Helianthus silphioides
TENN-V-0230479	Coffee	Tennessee			TENN Helianthus silphioides
TENN-V-0230492	Weakley	Tennessee			TENN Helianthus silphioides
TENN-V-0230486	Grundy	Tennessee			TENN Helianthus silphioides
UOS00975	Coffee	Tennessee	06 Sep 1996	Landon E. McKinney	UOS Helianthus silphioides
BRIT96548		Tennessee			VDB Helianthus silphioides
BRIT96534		Tennessee			VDB Helianthus silphioides
BRIT96543		Tennessee			VDB Helianthus silphioides
BRIT96538		Tennessee			VDB Helianthus silphioides
APSC0114409	McNairy	Tennessee			APSC Helianthus silphioides
APSC0116220	Warren	Kentucky			APSC Helianthus silphioides
APSC0116226	McCreary	Kentucky			APSC Helianthus silphioides
N/A	Coffee	Tennessee	06 Sep 1996	Landon E. McKinney	UOS Helianthus silphioides
BRIT96547		Tennessee			VDB Helianthus silphioides
BRIT96545		Tennessee			VDB Helianthus silphioides
BRIT96540		Tennessee			VDB Helianthus silphioides
BRIT277316	Coffee	Tennessee			VDB Helianthus silphioides
TENN-V-0230487	Hardeman	Tennessee			TENN Helianthus silphioides
TENN-V-0230490	Marion	Tennessee			TENN Helianthus silphioides
TENN-V-0232492	Madison	Tennessee			TENN Helianthus silphioides
TENN-V-0230478	Coffee	Tennessee			TENN Helianthus silphioides
TENN-V-0230475	Coffee	Tennessee			TENN Helianthus silphioides
APSC0116296	Calloway	Kentucky			APSC Helianthus silphioides
UOS00974	Coffee	Tennessee	17 Sep 2005	Mary P. Priestley	UOS Helianthus silphioides
BRIT96537		Tennessee			VDB Helianthus silphioides
BRIT96533		Tennessee			VDB Helianthus silphioides
BRIT96541		Tennessee			VDB Helianthus silphioides
TENN-V-0230488	Madison	Tennessee	24 Aug 1947	A.J. Sharp	TENN Helianthus silphioides
TENN-V-0230489	Madison	Tennessee			TENN Helianthus silphioides
TENN-V-0232491	Hardeman	Tennessee			TENN Helianthus silphioides
TENN-V-0230483	Chester	Tennessee			TENN Helianthus silphioides
UCHT007850	Madison	Tennessee	24 Aug 1947	A. J. Sharp, J. K. Underwood, E. Clebsch 6836	UCHT Helianthus silphioides
UCHT039109	Hamilton	Tennessee			UCHT Helianthus silphioides
BRIT96536		Tennessee			VDB Helianthus silphioides
BRIT96549		Tennessee			VDB Helianthus silphioides

View a List of All Ecological Communities

Helianthus silphioides

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos