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: B. humilis has leafy stems; long, narrow fruits; and grayish white petals. Flowering/Fruiting Period: July/late July-August. Habitat: Calcareous substrates, especially Leadville Limestone; sparsely vegetated slopes above timberline with fine gravels or on disturbed sites associated with inactive mines. Elev. 12,000-13,000 ft. Photo Copyright © 1999 by B. Jennings Distribution: Alaska, Yukon, British Columbia, Northwest Territories, Quebec. Disjunct in central Colorado (Chaffee, Gunnison, Park and Pitkin Cos.). References: Harris 1985; Siems and Neely 1990; Welsh 1974. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992