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Cabeza Prieta Natural History Association
Sonoran Desert Plants
Petalonyx thurberi subsp. thurberi (Thurber Sandpaper Plant)

Coffee Pot Mountain


 Petalonyx thurberi subsp. thurberi

 Petalonyx thurberi subsp. thurberi

Habitat: washes
Life Form: shrub,medium
Leaf Description: alternate simple rough leaves
Flower Color: white or whitish
Flowering Period: Apr. to Oct.
Spines: spineless
Family: Loasaceae (stick leaf family)
Abundance: rare
Additional Information:
Felger, R.S. and S. Rutman. 2015. Ajo Peak to Tinajas Altas: A flora of southwestern Arizona. Part 15. Eudicots: Fagaceae to Lythraceae. Phytoneuron 2015-59: 1-53. Published 20 Oct 2015. ISSN 2153 733X page 47 (8.5 MB pdf)

Photo Credits:
Photo #1
Photo #2

Our member horticultural expert is Hank Jorgensen. For more information on this plant species, see Hank's page (opens in a new tab).






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Natural History of the Sonoran Desert and Refuge