Sohnsia is a genus of plants in the grass family.Airy Shaw, Herbert Kenneth. 1965. Kew Bulletin 18(2): 272.Grassbase - The World Online Grass Flora The only known species is Sohnsia filifolia, native to the States of San Luis Potosí and Querétaro in northeastern Mexico.Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México D.F.Espejo Serna, A., A. R. López-Ferrari & J. Valdés-Reyna. 2000. Poaceae. Monocotiledóneas Mexicanas: una Sinopsis Florística 10: 7–236 It is dioecious, with its chromosome number being 2n = 20.
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