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 Brassicaceae (Mustard Family) Look Alikes: D. grayana has dense tangled simple pubescence on the stems and clawed petals. D. crassifolia has much shorter styles (less than 0.15 mm). D. crassa has a sparsely pubescent stem and usually has four or more stem leaves. Flowering/Fruiting Period: Late June-July/early August. Habitat: Rocky, gravelly slopes and talus; fellfields; usually granitic bedrock. Elev. 12,000-14,000 ft. Photo Copyright © 1999 by A. Kratz Distribution: Endemic to Colorado (Boulder, Clear Creek, El Paso, Gilpin, Grand, Lake, Park and Summit Cos.). References: Price 1985; Rollins 1993; Zwinger and Willard 1972. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992