Rare Plant Field Guide

Table of Contents Home Introduction Acknowledgments Definitions Master Plant List USFS List BLM List Other Agencies Glossary References Plant Survey Form HELP! NDIS Home CNHP Home

Photo Copyright © 1999 by B. Jennings Fabaceae (Pea Family) Synonym: Astragalus naturitensis var. deterior Look Alikes: A. monumentalis var. cottamii has narrower pod septa and pink-purple flowers. A. humillimus has a distinctive spine-tipped rachis which remains part of the plant after the leaves are shed. Flowering/Fruiting Period: May/late May-June. Habitat: Sandstone rimrock edges of mesas. Found in cracks and depres-sions in shallow soil. Elev. 6400-7000 ft. Photo Copyright © 1999 by C. Johnson Distribution: Colorado endemic (Mesa Verde National Park, Montezuma Co.). References: O’Kane 1988; Peterson 1981a. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992