Salvia summa
Worthington, R. 1981. Noteworthy Collection of Salvia summa. Department of Biological Sciences at the University of Texas, El Paso. USFS.
Tonne, P., Sivinski, B., and McDonald, C. 2001. Email correspondence correcting a report of Salvia summa as actually being Salvia henryi. . 2 p.
Worthington, R. 2000. Inventory of the Flora of the New Mexico Portion of the Guadalupe Mountains, Otero and Eddy Counties, New Mexico, Working Second Draft. USFS.
Worthington, R. 1999. Salvia summa. Printed from: largocanyon.org/nmrptc/SALSUM.htm
Dunmire, W.W. 1990. Biological inventory, Lonesome Ridge ACEC, Carlsbad Resource Area, Bureau of Land Management. Unpubl. report by The Nature Conservancy, NMFO. 53 p.
Dunmire, W. W. 1990. An investigation of biological resources focusing on plant and animal communities with recommendations for future management actions, Biological Inventory, Dark Canyon ACEC, Carlsbad Resource Area. Prepared for BLM by TNC Field Office
Tonne, P. 2005. Results of rare plant surveys on Carlsbad Caverns National Park Rattlesnake Canyon Trail. Natural Heritage New Mexico Publication No. 05-GTR-295. 50 p.
Worthington, R. 2002. Inventory of the Flora of the Guadalupe Mountains, New Mexico and Texas. Second Working Draft. USFS
Tonne, P. 2002. Results of rare plant surveys on Carlsbad Caverns National Park. 23p. + appendices.
Tonne, P. 2004. Results of rare plant surveys on Carlsbad Caverns National Park Walnut Canyon entrance road. Natural Heritage New Mexico, University of New Mexico, Albuquerque, New Mexico.. 42 p.