Synonym(s): Helianthus divaricatus var. angustifolius
Image ID: 29344
Image by: Oglesby, Emily
Image Collection: NCBG Digital Library
SCIENTIFIC NAME: Helianthus divaricatus
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2019-09-18
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 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.
INTRO:Erect, rhizomatous perennial of moist to dry woodlands, forests, and forest edges and clearings. STEMS: Stems simple or branched at summit, mostly smooth, often with a whitish coating. LEAVES: Leaves opposite,spreadinghorizontally,sessile, lance-shaped, 2-6 in. long, with 3 veins diverging from the base,entire or toothed, rough above or on both surfaces and lower surface soft-hairy. INFLORESCENCE: FLOWERS:Composite flowers (heads) in terminal clusters, 1 1/2-3 in. wide, consisting of 8-15 yellow ray florets encircling a center disk of darker yellow tubular florets. Overlapping, upwardly curving bracts surround the base of each head. FRUITS:Fruit a dark brown to blackish, flattened, oval achene. COMMENTS: HEIGHT: 2-7 ft. DURATION:
Opposite LEAF COMPLEXITY:
Simple LEAF RETENTION: FLORAL CHARACTERISTICS
BLOOM TIME: Jun-Aug
BLOOM COLOR: Yellow
FRUITING PERIOD: DISTRIBUTION
HABITAT TYPE: Dry forests, Moist forests, Woods margins
NATIVE RANGE: eastern North America HORTICULTURAL
Plant Sale Text: In late summer, Woodland Sunflower produces two-inch flowers borne on upright slender stems. Yellow rays surround a slightly darker yellow central disk. Its handsome green leaves have a sandpaper-like texture. This species is found in open rocky woods and along roadsides. It is quite drought-tolerant, once the plantâ€™s root system has gotten established. Over time, this species spreads with creeping rhizomes to form colonies. The seeds of this handsome native sunflower are a great food source for birds.
Bloom Table Text:
Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 3
MAXIMUM HARDINESS ZONE: 9
Bee Friendly, Butterfly Friendly, Bird Friendly
USDA Symbol: HEDI2
USDA Common Name: Woodland Sunflower
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, VA, VT, WI, WV), CAN (ON, QC)
Growth Habit: Forb/herb
SCIENTIFIC NAME: Helianthus divaricatus
COMMON NAME: Spreading Sunflower
SYNONYMY: [= C, FNA, G, Il, K, Pa, RAB, S, SE, Va, W, WH3, WV; > H. divaricatus var. angustifolius Kuntze - F; > H. divaricatus var. divaricatus - F]
HABITAT: Mesic to dry woodlands and forests, forest edges.
COMMENTS: ME, QC, ON, and IA south to Panhandle FL, LA, and OK.
RANGE MAP: Helianthus divaricatus.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).
SERNEC: Find Helianthus divaricatus in Southeast Regional Network of Experts and Collections (if available) UNC SERNEC: Find Helianthus divaricatus in
University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)