Helianthus praetermissus

Helianthus praetermissus is a rare and probably extinct North American species of sunflower, with the common names New Mexico sunflower[1] and lost sunflower. It is known from only one specimen collected in 1851 in Cibola County in western New Mexico, and not seen since.[2][3]

Lost sunflower
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Helianthus
Species:
H. praetermissus
Binomial name
Helianthus praetermissus

Helianthus praetermissus is (was?) an annual herb with a slender, unbranching stem 90 cm (3 feet) tall. It has (had) a single flower head with yellow ray florets surrounding red disc florets.[3]

References
  1. "Helianthus praetermissus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 6 July 2015.
  2. Biota of North America Program 2014 county distribution map
  3. New Mexico Rare Plants, University of New Mexico, Helianthus praetermissus (Lost sunflower) includes description, ecological and historical information, and photo of the only known speciimen


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