| Documentation |
State |
Type |
| California Native Plant Society. Inventory of rare and endangered plants. |
CA |
Literature |
| Dorn, R.D. 1977. Manual of the vascular plants of Wyoming. 2 vols. Garland Publishing, Inc., New York. |
WY |
Literature |
| Hartman, R. Atlas of the vascular flora of Wyoming. Unpublished and undated. |
WY |
Literature |
| Hatch, S.L., K.N. Gandhi, and L.E. Brown. 1990. Checklist of the vascular plants of Texas (MP-1655). Texas Agricultural Experiment Station, College Station. |
TX |
Literature |
| Heil, K.D, and S.L. O'Kane, Jr. 2002. Catalog of the Four Corners flora - vascular plants of the San Juan River Drainage: Arizona, Colorado, New Mexico and Utah, 6th ed. |
AZ |
Literature |
| Hickman, J.C. (ed.). 1993. The Jepson manual. University of California Press, Berkeley. |
CA |
Literature |
| Hogan, Tim. Personal communication. |
CO |
Literature |
| Johnston, B. 1991. List of Colorado plants. Unpublished. |
CO |
Literature |
| Kearney, T., and R.H. Peebles. 1960. Arizona flora with supplement. University of California Press, Los Angeles. |
AZ |
Literature |
| Martin, W.C., and C.R. Hutchins. 1980. A flora of New Mexico. Strauss & Cramer, Germany. |
NM |
Literature |
| McGregor, R.L., et al. 1977. Atlas of the flora of the Great Plains. Iowa State University Press, Ames. |
OK |
Literature |
| Monroe, Gary. 15 July 2007. Field observation validated by NPDC staff. |
NV |
Observation |
| NMC. Specimen at New Mexico State University, Las Cruces, New Mexico. |
NM |
Specimen |
| Shultz, Leila M. Personal communication. |
UT |
Literature |
| Specimen at Eastern New Mexico University, Portales, New Mexico. |
NM |
Specimen |
| TEX. Specimen at University of Texas, Austin, Texas. |
TX |
Specimen |
| Texas A&M Bioinformatics Working Group. Texas A&M Bioinformatics Working Group Internet site. |
TX |
Literature |
| UNM. Specimen at University of New Mexico, Albuquerque, New Mexico. |
NM |
Specimen |
| Welsh, S.L., N.D. Atwood, L.C. Higgins, and S. Goodrich. 1987. A Utah flora. Great Basin Naturalist Memoirs No. 9. Brigham Young University Press, Provo. |
UT |
Literature |
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