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Taxon  Report  
Cryptantha hooveri  I. M. Johnst.
Hoover's cryptantha
Cryptantha hooveri is an annual herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1A (presumed extinct).
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Observation Search
~15 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
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Bloom Period
Genus: Cryptantha
Family: Boraginaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Valley Grassland
Name Status:
Accepted by JEF + CNPS + PLANTS

Information about  Cryptantha hooveri from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (CRHO4)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[explorer.natureserve.org] Extirpated status: Cryptantha hooveri is only known from three historical occurrences and was last seen in 1939. It occurred in the highly developed low elevation grassland areas in the Central Valley of California. Surveys to relocate this species have been unsuccessful. There are no extant occurrences known to exist, but this is a small, hard-to-identify plant. One occurrence in Contra Costa Co. (the one furthest north) is listed as possibly extirpated; this one was not used in calculating the range extent. The other two historical occurrences in Stanislaus and Madera counties are fairly disjunct. The area of their range is about 400 sq mi. (link added by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/19/2024).