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Petalonyx thurberi, a dicot, is a perennial herb that is native to California.
Recognized as current in TJM2 + PLANTS + JM93
Imperial, Inyo, Kern, Los Angeles, Riverside, San Bernardino, San Diego, Tulare
See a detailed Distribution Grid of this plant in Calfornia.
Links: USDA Plants Profile | Jepson Herbarium
Website references on Google
Bloom Months(Blooming months in blue)