Astragalus proximus

Nielsen, L. et al. 1998. Biological survey results for the Mid-America Pipeline Company/Williams Rocky Mountain Loop Project. Prepared by ENSR, Fort Collins, Colorado.

• Sclerocactus cloveriae ssp. Brackii
• Penstemon breviculus
• Gilia formosa
• Astragalus proximus
• Aliciella formosa
• AZTEC GILIA
• BRACK'S HARDWALL CACTUS
• NARROW-MOUTH PENSTEMON