thermal springs

Nesom, G.L., L.A. Vorobik, and R.L. Hartman. 1990. The identity of Aster blepharophyllus (Asteraceae: Astereae). Systematic Botany 15(4): 638-642.

• Machaeranthera gypsitherma
• thermal springs
• Aster blepharophyllus
• Gypsum
• hot springs