Prionosciadium linearifolium is a plant known from the Mexican states of Puebla and Zacatecas. It is a biennial herb with compound leaves with long linear leaflets.Coulter, John Merle, & Rose, Joseph Nelson. Contributions from the United States National Herbarium 3(5): 308. 1895.Watson, Sereno. Proceedings of the American Academy of Arts and Sciences 22: 415. 1887.Mathias, M. E. & L. Constance. 1973. New and reconsidered Mexican Umbelliferae. Contributions from the University of Michigan Herbarium 11(1): 1–24.Field Museum, Muestras Neotropicales de Herbario
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