mapimage
Rare Plant Field Guide




Table of Contents
arrow Home
arrow Introduction
arrow Acknowledgments
arrow Definitions
arrow Master Plant List
arrow USFS List
arrow BLM List
arrow Other Agencies
arrow Glossary
arrow References
Have you seen this plant? Plant Survey Form
Go to Help! HELP!
arrow NDIS Home
arrow CNHP Home
line
Photo Copyright © 1999 by by S. Spackman

Click for Technical Illustration!

Fabaceae (Pea Family)

line
Look Alikes: A. duchesnensis is 15-40 cm in height, has pink-purple flowers with white wing tips, pods 20-35 mm in length, and is not known to occur in Grand County.

Flowering/Fruiting Period: Flowers June-August.

Habitat: Highly seleniferous, grayish-brown clay soils derived from shales of the Niobrara, Pierre and Troublesome formations. On moderate slopes, sometimes growing up through sagebrush. Elev. 7400-7900 ft.

Photo Copyright © 1999 by by S. Spackman
Distribution: Colorado endemic (Muddy and Troublesome Creek drain-ages, Grand Co.).

Click for Map!

References: Barneby 1964; O’Kane 1988; Bureau of Land Management 1990b.



Please send comments to: Colorado Natural Heritage Program
254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992