Trichostema arizonicum, the Arizona bluecurls, is a perennial plant in the mint family (Lamiaceae) native to the Southwestern United States (Arizona, New Mexico, Texas) and northwestern Mexico.Kew World Checklist of Selected Plant FamiliesBiota of North America Program 2013 county distribution mapSoutheastern Arizona Wildflowers, Trichostema arizonicum – Arizona Bluecurls/Sonoran Desert Wildflowers, Richard Spellenberg, 2nd ed., 2012, It has striking curling flowers and can often be found along road sides. The genus name means "hair stems" in reference to the graceful stamens that curl around to dab pollen on the backs of insect pollinators.
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