Helianthus microcephalus

ClassificationDicots
FamilyAsteraceae
Family (Traditional)Asteraceae
GenusHelianthus
Species:Helianthus microcephalus Torr. & A. Gray
Common NameSmall Woodland Sunflower; Woodland Sunflower
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BE; Natural Area Presence: BEH; Natural Area Presence: BFM; Natural Area Presence: BISO; Natural Area Presence: DRU; Natural Area Presence: FCFSP; Natural Area Presence: FG; Natural Area Presence: GILES; Natural Area Presence: GRSM; Natural Area Presence: LCW; Natural Area Presence: LGS; Natural Area Presence: LULA; Natural Area Presence: NCCGSNA; Natural Area Presence: NRG; Natural Area Presence: ObedWSR; Natural Area Presence: PK; Natural Area Presence: RCSP; Natural Area Presence: SGSNA; Natural Area Presence: TRG; Natural Area Presence: UCR; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-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: 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 6
StatusNative; AGCP (UPL), EMP (UPL) (NWPL); TN[SNR] KY[S5] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

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.

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  • 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

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: Adair (KY), Allen (KY), Anderson (KY), Barren (KY), Bath (KY), Bell (KY), Bullitt (KY), Butler (KY), Calloway (KY), Carter (KY), Christian (KY), Clark (KY), Clinton (KY), Cumberland (KY), Edmonson (KY), Elliott (KY), Estill (KY), Franklin (KY), Garrard (KY), Graves (KY), Harlan (KY), Hart (KY), Jackson (KY), Jefferson (KY), Jessamine (KY), Larue (KY), Laurel (KY), Lee (KY), Letcher (KY), Lewis (KY), Lincoln (KY), Livingston (KY), Lyon (KY), McCracken (KY), McCreary (KY), Madison (KY), Marion (KY), Menifee (KY), Montgomery (KY), Nelson (KY), Pike (KY), Powell (KY), Pulaski (KY), Rockcastle (KY), Rowan (KY), Russell (KY), Trigg (KY), Whitley (KY), Wolfe (KY), Woodford (KY), Benton (TN), Bledsoe (TN), Blount (TN), Bradley (TN), Campbell (TN), Cannon (TN), Carroll (TN), Carter (TN), Cheatham (TN), Chester (TN), Claiborne (TN), Clay (TN), Cocke (TN), Coffee (TN), Cumberland (TN), Davidson (TN), Decatur (TN), DeKalb (TN), Dickson (TN), Dyer (TN), Fayette (TN), Fentress (TN), Franklin (TN), Gibson (TN), Giles (TN), Grainger (TN), Greene (TN), Grundy (TN), Hamilton (TN), Hardeman (TN), Hardin (TN), Hawkins (TN), Haywood (TN), Henderson (TN), Henry (TN), Hickman (TN), Houston (TN), Humphreys (TN), Jackson (TN), Jefferson (TN), Johnson (TN), Knox (TN), Lauderdale (TN), Lawrence (TN), Lewis (TN), Loudon (TN), McMinn (TN), McNairy (TN), Macon (TN), Madison (TN), Marion (TN), Maury (TN), Monroe (TN), Montgomery (TN), Moore (TN), Morgan (TN), Obion (TN), Overton (TN), Perry (TN), Pickett (TN), Polk (TN), Putnam (TN), Rhea (TN), Roane (TN), Robertson (TN), Scott (TN), Sequatchie (TN), Sevier (TN), Shelby (TN), Stewart (TN), Sullivan (TN), Sumner (TN), Tipton (TN), Unicoi (TN), Union (TN), Van Buren (TN), Washington (TN), Wayne (TN), White (TN), Williamson (TN)

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

Range of years during which specimens were collected: 1897 - 2019

Accession No. (click for full details)
County
State
Coll. Date
Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100261088 Adair Kentucky 02 Sep 1990 Ronald L. Jones
6650
EKY
Helianthus microcephalus
APSC0116265 Allen Kentucky
APSC
Helianthus microcephalus
31234100261096 Anderson Kentucky 13 Aug 1955 Mary E. Wharton
9372
EKY
Helianthus microcephalus
31234100261104 Anderson Kentucky 08 Aug 1978 W. S. Bryant
519
EKY
Helianthus microcephalus
31234100261112 Anderson Kentucky 08 Aug 1978 W. Bryant
82
EKY
Helianthus microcephalus
TENN-V-0232321 Anderson Kentucky
TENN
Helianthus microcephalus
31234100261120 Barren Kentucky 22 Sep 1979 G. Johnson
451
EKY
Helianthus microcephalus
APSC0116291 Barren Kentucky
APSC
Helianthus microcephalus
APSC0116268 Barren Kentucky
APSC
Helianthus microcephalus
31234100261138 Bath Kentucky 27 Jul 1984 Julian Campbell
762
EKY
Helianthus microcephalus
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Plant Photos

Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Dwayne Estes
Helianthus microcephalus - Joey Shaw
Helianthus microcephalus - Joey Shaw
Helianthus microcephalus - Joey Shaw
Helianthus microcephalus - Joey Shaw
Helianthus microcephalus - Joey Shaw
Helianthus microcephalus - Joey Shaw
Helianthus microcephalus - Sunny Fleming
Helianthus microcephalus - Sunny Fleming