Ionactis caelestis, the Spring Mountain aster, is a rare North American species in the family Asteraceae. It has been found only in southern Nevada in the western United States.Biota of North America Program 2014 county distribution map
Description Ionactis caelestis is a small perennial shrub up to tall, with a thick woody taproot. The plant usually produces several flower heads in a flat-topped array.Flora of North America, Ionactis caelestis P. J. Leary & G. L. Nesom, 1992. Spring Mountain ankle-aster, aster
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