Helianthus praetermissus

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
E.Watson

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]

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]

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