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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Achyronychia cooperi

Achyronychia cooperi Torr. & A. Gray

Cooper's Frostmat , Frost Mat, Onyxflower

Caryophyllaceae (Pink family)


USDA Symbol: ACCO3

USDA Native Status: L48 (N)


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Plant Characteristics

Duration: Annual
Habit: Herb
Size Notes: Up to about 7 inches tall.

Bloom Information

Bloom Color: White , Green
Bloom Time: Jan , Feb , Mar , Apr , May


USA: AZ , CA , NV , UT
Native Habitat: Dry, sandy areas, sand dunes, desert washes.

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Achyronychia cooperi in USDA Plants
FNA: Find Achyronychia cooperi in the Flora of North America (if available)
Google: Search Google for Achyronychia cooperi


Record Modified: 2020-10-28
Research By: CBR

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