Prionosciadium is a genus in the carrot family, Apiaceae. It is endemic to Mexico. The plants are biennial herbs with large taproots.John Merle Coulter, Joseph Nelson Rose - 1900. A Synopsis of Mexican and Central American Umbelliferae. Proc. Wash. Acad. Sci. 1:111-159.Watson, Sereno. Proceedings of the American Academy of Arts and Sciences 23(2): 275–276. 1888.Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2009. Cucurbitaceae a Polemoniaceae. 4(1): i–xvi, 1–855. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México D.F.
Species There are currently 14 described species in Prionosciadium:The Plant List search for Prionosciadium
Prionosciadium bellii Mathias & Constance - Michoacán Prionosciadium cuneatum J.M.Coult. & Rose - Jalisco Prionosciadium diversifolium Rose - Guerrero Prionosciadium humile Rose - Nuevo León Prionosciadium lilacinum Mathias & Constance - Jalisco, Nayarit Prionosciadium linearifolium (S. Watson) J.M.Coult. & Rose - Puebla, Zacatecas Prionosciadium madrense S. Wats. - Chihuahua Prionosciadium megacarpum J.M.Coult. & Rose - Oaxaca Prionosciadium nelsonii J.M.Coult. & Rose - Morelos, Chiapas Prionosciadium saraviki Laferr. - Chihuahua Prionosciadium tamayoi - Jalisco Prionosciadium thapsoides (DC.) Mathias - Veracruz, Mexico State Prionosciadium townsendii Rose - Chihuahua Prionosciadium watsonii J.M.Coult. & Rose - Durango, Sinaloa, Oaxaca
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