Tag Archives: Cryptantha

Cryptantha hooveri I. M. Johnson

Hoover’s Cryptantha (Cryptantha hooveri)

Hoover’s Cryptantha was an annual, 5 to 20 cm tall plantlet with simple or branched stems and linear leaves that inhabited grassland communities on sandy soil.


Hoover’s Cryptantha was last recorded in 1939 and may be extinct, however, the species is said to be hard to identify, so there’s some hope that it may still exist but may just have been overlooked so far.


edited: 05.12.2018

Cryptantha aperta (Eastw.) Payson

Grand Junction Cat’s-Eye (Cryptantha aperta)

The Grand Junction Cat’s-Eye was found only twice in 1892, both times somewhere around the city of Great Junction in Mesa County, Colorado, USA.

The original type locality is not really known, however, all presumed localities are more or less completely destroyed due to agricultural and urban development, the species was never found again and is considered most likely extinct.



Depiction from: “Edwin Blake Payson: A monograph of the section Oreocarya of Cryptantha. Annals of the Missouri Botanical Garden 14(3): 211- 358. 1927”

(under creative commons license (3.0))


edited: 05.12.2018