Demographic and environmental relations of two rare Astragalus species endemic to Washington County, Utah: Astragalus holmgreniorum and A. ampullarioides

Western North American Naturalist

Volumn 63, Issue 2, 2003, Pages 236-243

  Van Buren, Renée ^a   Harper, K T ^a,b  

^a UTAH VALLEY STATE COLLEGE   (United States)

^b BRIGHAM YOUNG UNIVERSITY   (United States)

Author keywords

Astragalus; Demography; Endangered; Endemic; Utah; Washington County

Indexed keywords

ASTRAGALUS HOLMGRENIORUM; BROMUS; BROMUS RUBENS; BROMUS TECTORUM; ERODIUM; ERODIUM CICUTARIUM; MALCOLMIA; MALCOLMIA AFRICANA;

EID: 0037994227     PISSN: 15270904     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (12)

1. BARNEBY, R.C. 1980. Dragma Hippomanicum V: two new Astragali from the Intermountain United States. Brittonia 32:24-29.
2. _. 1989. Fabales. Pages 1-279 in A. Cronquist et al., Intermountain flora. Volume 3B. New York Botanical Garden, Bronx, NY.
3. BEATLY, J.C. 1974. Phenological events and their environmental triggers in Mojave Desert ecosystems. Ecology 55:856-863.
4. HARPER, K.T. 1997. Sego lily. Newsletter of the Utah Native Plant Society 2:2.
5. HARPER, K.T., AND R. VAN BUREN. 2001. The influence of interplant distance and flower number on seed set in Arctomecon humilis Cov. (Papaveraceae). Southwestern Rare and Endangered Plants: Proceedings of the 3rd Conference. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Proceedings RMRS-P-23.
6. NELSON, D., AND K.T. HARPER. 1991. Site characteristics and habitat requirements of the endangered dwarf bear-claw poppy (Arctomecon humilis Coville, Papaveraceae). Great Basin Naturalist 51:167-175.
7. STUBBEN, C. 1997. Habitat characteristics of Astragalus holmgreniorum Barneby and genetic variation among two rare milkvetches in southwestern Utah. Master's thesis, Department of Botany and Range Science, Brigham Young University, Provo, UT.
8. U.S. FISH AND WILDLIFE SERVICE. 2000. Endangered and threatened wildlife and plants; proposed determination of endangered status for Astragalus holmgreniorum (Holmgren milk-vetch) and Astragalus ampullarioides (Shivwits milk-vetch). Federal Register 65:19728-19734.
9. VAN BUREN, R., AND K.T. HARPER. 1998. Bureau of Land Management status annual report: Astragalus ampullarioides and A. holmgreniorum. Bureau of Land Management, Salt Lake City, UT.
10. WELSH, S.L. 1986. New taxa in miscellaneous families from Utah. Great Basin Naturalist 46:261-264.
11. _. 1998. Astragalus (Leguminosae): nomenclatural proposals and new taxa. Great Basin Naturalist 58:45-53.
12. WELSH, S.L., N.D. ATWOOD, S. GOODRICH, AND L.C. HIGGINS, EDITORS. 1993. A Utah flora. 2nd edition, revised. Brigham Young University, Provo, UT.