Synonym(s): Helianthus atrorubens var. alsodes
Image ID: 14769
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library
SCIENTIFIC NAME: Helianthus atrorubens
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2019-01-23
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 found in dry soils of rocky, sandy or clayey woodlands, pine savannas and road banks. STEMS: Stems simple to few-branched, rough-hairy near the base and with softer hairs toward the tip. LEAVES: Leaves mostly basal or on lower stems, opposite, on broadly winged petioles, oval to diamond-shaped, 2-8 in. long, toothed or scalloped and rough; middle to upper stem leaves similar but fewer and smaller. INFLORESCENCE: FLOWERS:Composite flowers (heads) in small clusters; heads to 3 in. wide, consisting of 10-15 yellow ray florets encircling a center disk of dark purple tubular florets; overlapping oval or oblong bracts surround the base of each head. FRUITS:Fruit a dark brown, sparsely bristled, narrowly oval achene. COMMENTS: HEIGHT: 2 1/2-6 1/2 ft. DURATION:
Opposite LEAF COMPLEXITY:
Simple LEAF RETENTION: FLORAL CHARACTERISTICS
BLOOM TIME: Late Jul-Oct
BLOOM COLOR: Yellow
FRUITING PERIOD: DISTRIBUTION
HABITAT TYPE: Dry forests, Pine savannas
NATIVE RANGE: southeastern United States HORTICULTURAL
Plant Sale Text: This Southeast native sunflower may not boast the large heads and seeds of more familiar cultivated sunflowers, but it is a tough perennial with a cheerful disposition. Commonly found in dry woodlands and growing on roadbanks, this plant is tolerant of dauntingly dry sandy, rocky, or clay soil conditions once established. This plant will be quite at home in a meadow garden or roadside planting and is also a nice plant for beds and borders. The seeds of sunflowers are a great food source for birds.
Bloom Table Text:
Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 6
MAXIMUM HARDINESS ZONE: 9
Bee Friendly, Butterfly Friendly, Bird Friendly
SCIENTIFIC NAME: Helianthus atrorubens
COMMON NAME: Appalachian Sunflower
SYNONYMY: [= C, FNA, K, RAB, SE, Va, W, WH3; > H. atrorubens var. alsodes Fernald - F; > H. atrorubens var. atrorubens - F; = H. atrorubens var. atrorubens - G; < H. atrorubens - S]
PHENOLOGY: Late Jul-Oct.
HABITAT: Dry soils of rocky, sandy, or clayey woodlands and roadbanks.
COMMENTS: N. VA west to w. TN, and south to c. GA, Panhandle FL, AL, and se. LA. Related to the Ozarkean H. silphioides Nuttall.
RANGE MAP: Helianthus atrorubens.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 atrorubens in Southeast Regional Network of Experts and Collections (if available) UNC SERNEC: Find Helianthus atrorubens in
University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)