Petalonyx thurberi ssp. gilmanii Calflora

Calflora, a 501c3 non-profit

Taxon Report

Petalonyx thurberi A. Gray ssp. gilmanii (Munz) W. S. Davis & H. J. Thomps.

Death valley sandpaper plant

2022 Matt Berger

2019 Erin Farr

2012 Ron Wolf

Petalonyx thurberi ssp. gilmanii is a shrub that is native to California, and endemic (limited) to California.

also called Petalonyx gilmanii

California Rare Plant Rank: 1B.3 (rare, threatened, or endangered in CA and elsewhere).


	Plant Range Observation Search ~51 records in California Plant Characteristics one or more occurrences within a 7.5-minute quadrangle

Bloom Period

Photos on Calflora


Parent:	Petalonyx thurberi
Genus:	Petalonyx
Family:	Loasaceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Habitat: dunes

Communities: Creosote Bush Scrub

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:


JEF + CNPS + PLANTS	Petalonyx gilmanii
PLANTS	Petalonyx thurberi var. gilmanii

Information about Petalonyx thurberi ssp. gilmanii from other sources


Nursery availability from CNPLX Commercial availability unknown. Jepson eFlora USDA PLANTS Profile (PETHG) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist ID Tips on PlantID.net	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape BONAP Distribution Map CNPS Inventory: 1B.3 Consortium of California Herbaria 2 Search the Native American Ethnobotany Database	Add an Observation Location Suitability Planting Guide Distribution by County
photos / record / common / links

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 05/12/2025).