ID_PLANT: HEMI3
SCIENTIFIC NAME: Helianthus microcephalus
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2019-01-23
GENUS INDEX
GENUS CODE: HELIA3 GENUS SCIENTIFIC:Helianthus GENUS AUTHORITY: L. GENUS COMMON: Sunflower GENUS SUMMARY: A genus of about 50 species, herbs, of North America. GENUS IDENTIFICATION: GENUS REFERENCES: Schilling in FNA (2006c); Heiser et al. (1969); Cronquist (1980)=SE; Schilling et al. (1998). Key adapted from FNA, SE, RAB, and Heiser et al. (1969).
FAMILY INDEX
FAMILY CODE: ASTERA FAMILY SCIENTIFIC:Asteraceae FAMILY AUTHORITY: Dumortier 1822 or COMPOSITAE Giseke 1792 FAMILY COMMON: Aster Family FAMILY SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution. FAMILY REFERENCE: Cronquist (1980)=SE throughout family treatment.
NCBG DESCRIPTIVES
INTRO:Erect, rhizomatous perennial of dry woodlands, forests, barrens, clearings, and road banks. STEMS: Stems branched above, dark greenish-purple, often with a whitish coating, and smooth. LEAVES: Leaves mostly opposite, long-petiolate, lance-shaped, 3-6 in. long, 3-veined, toothed but entire near the base, thin, rough-hairy above, resin-dotted and usually short-hairy beneath. INFLORESCENCE: FLOWERS:Composite flowers (heads) numerous on long slender stalks; heads 1-1 1/2 in. wide, consisting of 5-8 yellow ray florets encircling a center disk of darker yellow, tubular florets. Overlapping, green, pointed bracts surround the base of each head. FRUITS:Fruit a dark brown to blackish achene. COMMENTS: HEIGHT: 2-6 1/2 ft. (occasionally taller) DURATION:
Perennial
HABIT:
Herb
LEAF ARRANGEMENT:
Alternate, Opposite LEAF COMPLEXITY:
Simple LEAF RETENTION: FLORAL CHARACTERISTICS
SYMMETRY:
Mixed
BLOOM TIME: Jul-Oct
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
x
x
x
x
x
BLOOM COLOR: Yellow
White
Red
Pink
Orange
Yellow
Green
Blue
Lavender
Purple
Violet
Brown
Not Applicable
x
FRUITING PERIOD: DISTRIBUTION
HABITAT TYPE: Disturbed, Dry forests, Woods margins
NATIVE RANGE: eastern United States HORTICULTURAL
Plant Sale Text: This sunflower grows in well-drained soils in full sun to part shade. It will form small colonies, so plant it in a place where you have room for it to spread. Attracts pollinators, butterflies and birds.
This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast
WEAKLEY FLORA
SCIENTIFIC NAME: Helianthus microcephalus
COMMON NAME: Small-headed Sunflower
SYNONYMY: [= F, FNA, G, Il, K, Pa, RAB, S, Va, W, WH3, WV; < H. microcephalus - C, SE]
PHENOLOGY: Jul-Oct.
HABITAT: Dry woodlands and roadbanks.
COMMENTS: NJ west to MN, south to Panhandle FL and se. LA.
RANGE MAP: Helianthus microcephalus.png
Key to Map SymbolsABOUT FAMILY (Weakley Flora) Asteraceae Dumortier 1822 or COMPOSITAE Giseke 1792 (Aster Family) SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution. REFERENCE: Cronquist (1980)=SE throughout family treatment.ABOUT GENUS (Weakley Flora) Helianthus L. (Sunflower) SUMMARY: A genus of about 50 species, herbs, of North America. REFERENCE: Schilling in FNA (2006c); Heiser et al. (1969); Cronquist (1980)=SE; Schilling et al. (1998). Key adapted from FNA, SE, RAB, and Heiser et al. (1969).
HERBARIUM RESOURCES
SERNEC: Find Helianthus microcephalus in Southeast Regional Network of Experts and Collections (if available) UNC SERNEC: Find Helianthus microcephalus in
University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)