Penstemon caespitosus var. thompsoniae (A.Gray) A.Nelson
, Univ. Wyoming Publ. 3: 104 (1937).- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:187232-2
- Publication
- University of Wyoming Publications. Laramie, WY
- Collation
- 3: 104
- Family as entered in IPNI
- Scrophulariaceae