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Helianthus radula

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Helianthus radula
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Helianthus
Species:
H. radula
Binomial name
Helianthus radula
Synonyms[1]
  • Rudbeckia radula Pursh
  • Centrocarpha radula D.Don

Helianthus radula is a North American species of sunflower known by the common name rayless sunflower or pineland sunflower.[2] It is native to the southeastern United States from eastern Louisiana to South Carolina.[3]

Helianthus radula grows in sandy, open woodlands such as pine barrens. It is an perennial herb up to 100 cm (40 inches) tall. One plant usually produces only one flower head, containing 0-8 yellow ray florets surrounding sometimes as many as 150 or more yellow or brown disc florets.[2]

References

  1. ^ The Plant List, Helianthus radula (Pursh) Torr. & A.Gray
  2. ^ a b Flora of North America, Helianthus radula (Pursh) Torrey & A. Gray, 1842. Rayless or pineland sunflower
  3. ^ Biota of North America Program 2014 county distribution map


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