Known only from Texas in the northeastern Davis Mountains in Jeff Davis County and from Brewster County. Several additional sites were found in 2000, some of which included female plants, increasing the total number of sites to between 7 and 9 (USFWS 2000).
Road maintenance - blading
Low populations numbers
The total number of sites where this species is found is between seven and nine (USFWS 2000)
J.C. Zech, L.K. Hedges, and S.J. Carlson from Sul Ross State University (Alpine, TX) and Region 1 Natural and Cultural Resources Program, Texas Parks and Wildlife (Fort Davis, TX) presented a paper entitled ""The reproductive biology of a west Texas endemic, Zanthoxylum parvum (Rutaceae)"" at the Third Rare and Endangered Plant Conference in 2000.
The Nature Conservancy of Texas acquired significant land in the area where this species is found, and has secured conservation easements on others, likely improving the conservation situation of this species. (USFWS 2000)
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