Amsonia tharpii
Roth, D. 2013. Amsonia tharpii (Tharp's bluestar) on NM State Trust Lands, status report. Submitted to U.S. Fish and Wildlife Service, Section 6, Segment 27. 20p.
Sivinski, R. 2014. Populations of Amsonia tharpii at Mescalero Ridge. Shapefiles forwarded to Natural Heritage New Mexico.
Roth, D. 2013. Survey results for Amsonia tharpii. NM Energy, Minerals and Natural Resouces Department.
Lea, A. 1996. NMHP cooperators plant occurrence specimen data collection forms generated from specimen information in University of New Mexico Herbarium.
Dunmire, W. 1990. Dunmire plant collection unpublished notes on Amsonia tharpii collections. 1 p + map.
Sivinski, R. and K. Lightfoot. 1995. State lands rare plant survey project. 1994 progress report. Section 6 report, Project #E9, segment 9 by NM Forestry and Resources Conservation Division for U.S. Fish and Wildlife Services. New Mexico Ecological Ser
Sivinski, R., T.B. Neville, E. Muldavin, and H. Hulse. 2013. Tharp's bluestar in the Carlsbad, New Mexico area. Interim progress report for the Bureau of Land Management.
S89DUNSBNMUS, Legacy reference. Physical copy not yet located.
S96SIVSBNMUS, Legacy reference. Physical copy not yet located.
Sivinski, R. 1992. Endangered plant study performance report for USFWS. 60 pp.