Helianthella microcephala

Vulnerable  (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Helianthella
Species:
H. microcephala
Binomial name
Helianthella microcephala
(A.Gray) A.Gray 1883
Synonyms[1]
  • Encelia microcephala A.Gray 1873

Helianthella microcephala, common name purpledisk helianthella,[2] is a North American plant species in the family Asteraceae. It grows in the southwestern United States, in the states of Arizona, New Mexico, Colorado, and Utah.[3][4]

Helianthella microcephala is a herbaceous plant up to 80 cm (31 in) tall. Leaves are up to 25 cm (9.8 in) long. The plant usually produces 3-15 yellow flower heads per stem, in a flat-topped array. Each head contains 5-13 yellow ray flowers surrounding numerous dark brown or dark purple (almost black) disc flowers.[5]

References

  1. ↑ The Plant List, Helianthella microcephala (A.Gray) A. Gray
  2. ↑ USDA, NRCS (n.d.). "Helianthella microcephala". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 20 July 2015.
  3. ↑ Biota of North America Program 2014 county distribution map
  4. ↑ SEINet, Southwestern Biodiversity, Arizona chapter includes photos, description, distribution map
  5. ↑ Flora of North America, Helianthella microcephala (A. Gray) A. Gray 1883

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