Compositae Specimens details
Mexico. Nuevo León: Mpio. Doctor Arroyo, 35 km NE of Doctor Arroyo, along road ca. 0.5 mi S of "El Puerto," NE of San Antonio Peña Nevada, NW side of Cerro Peña Nevada, area of oak woods, 2470 m, 23 46'N, 99 52'W, 16 Oct, 1988, Nesom & Morgan 6788 (Holotype: TEX; isotypes: ARIZ, MEXU)
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