Parthenice is a genus of flowering plants in the family Asteraceae.Gray, Asa. 1853. Smithsonian Contributions to Knowledge 5(6): 85–86 generic description in Latin, specific description in EnglishTropicos, Parthenice A. Gray Flora of North America, Vol. 21 Page 23 Parthenice A. Gray, Smithsonian Contr. Knowl. 5(6): 85. 1853. Sauck, J. R. 1975. Distribution, chromosomes, and taxonomy of Parthenice mollis (Compositae). Madroño 23: 227–234.
Species There is only one known species, Parthenice mollis,Flann, C (ed) 2009+ Global Compositae Checklist the annual monsterwort, native to Arizona (Pima, Santa Cruz, + Cochise Counties)Biota of North America Program 2013 county distribution map and northwestern Mexico (Sonora, Chihuahua, Sinaloa, Baja California Sur).
Varieties Parthenice mollis var. mollis - Arizona, Sonora, Chihuahua, Sinaloa Parthenice mollis var. peninsularis Sauck - Baja California Sur
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