Helianthus heterophyllus

Helianthus heterophyllus is a species of sunflower known by the common names variableleaf sunflower[2] and wetland sunflower. It is native to the coastal plain of the southern United States from Texas to North Carolina.[3]

Helianthus heterophyllus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Helianthus
Species:
H. heterophyllus
Binomial name
Helianthus heterophyllus
Nutt. 1834 not Short 1835
Synonyms[1]
  • Helianthus elongatus Small

Helianthus heterophyllus is a perennial sometimes as much as 120 cm (4 feet) tall, spreading by means of underground rhizomes. Leaves and stems are hairless or almost hairless; leaves appear white on the undersides because of an abundance of wax. One plant can produce 1-5 flower heads, each with 12–18 yellow ray florets surrounding as least 100 red or brown disc florets. The species grows in wet sandy soils at low elevations.[4]

References
  1. The Plant List, Helianthus heterophyllus Nutt.
  2. USDA, NRCS (n.d.). "Helianthus heterophyllus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 6 July 2015.
  3. Biota of North America Program 2014 county distribution map
  4. "Helianthus heterophyllus in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2016-11-08.


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