Texas

Muldavin, E, S. Wondzell, and J. A. Ludwig. 2002. Forty years of vegetation change in desert grasslands of Big Bend National Park. . 21 +app

• long term research
• Texas
• vegetation change
• Big Bend National Park
• desert grasslands

Natural Heritage New Mexico. 2008. Fort Davis National Historic Site Photo Map. Natural Heritage New Mexico Publ. No. 08-GTRmap-330. Natural Heritage New Mexico, University of New Mexico, Albuquerque, NM.

• National Park Service
• Fort Davis National Historic Site
• GIS
• map
• Texas

Weniger, D. 1984. Cacti of Texas and neighboring states: a field guide. Univ. of Texas Press, Austin. 356 pp.

• cacti
• field guide
• Texas

U.S. Fish and Wildlife Service. 2000. Federally listed as threatened and endangered species of Texas. March 28, 2000. . 59 p.

• threatened
• endangered
• species
• Texas

Higgins, L.C. 1989. Guadalupe Mountains National Park threatened and endangered and exotic plant surveys. Report prepared for Guadalupe Mountains National Park.

• Texas
• threatened
• endangered
• exotic

Arizona Game and Fish Department. 2003. Draba standleyi. Unpublished abstract compiled and edited by the Heritage Data Management System, Arizona Game and Fish Department, Phoenix, AZ. 4 p.

• Draba standleyi
• Standley whitlowgrass
• Arizona
• Brassicaceae
• Standley's draba
• Organ Mountains
• Texas
• Fort Bliss

Truett, J.C., D.P. Gober, A.E. Ernst, R. List, H. Whitlaw, C.L. Hayes, G. Schmitt and W.E. Van Pelt. 2006. Prairie dogs in the Chihuahuan Desert: History, Ecology, Conservation. Proceedings, 6th Symposium on the Natural Resources of the Chihuahuan Desert.

• black-tailed prairie dog
• Cynomys ludovicianus
• Chihuahua
• Chihuahuan desert
• Texas
• Arizona
• New Mexico

Powell, A.M. 1988. Trees and shrubs of Trans-Pecos Texas, including Big Bend and Guadalupe Mountains National Parks. Big Bend Natural History Association, Big Bend National Park, Texas. 536 pp.

• Texas
• trees
• woody plants
• field guide
• natural history
• shrub

Powell, A. M. 1983. Perityle (Asteraceae), New Species and Notes. Madrono, 30, No. 4: 217-225.

• Perityla huecoensis
• Hueco Mountains rockdaisy
• Fort Bliss
• Texas
• Mexico

Correll, D.S., and M.C. Johnston. 1970. Manual of the vascular plants of Texas. Texas Research Foundation, Renner. 1881 pp.

• taxonomy
• Texas
• HABITAT
• key
• morphology
• distribution