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 Asteraceae (Sunflower Family) Synonym: Parthenium alpinum Look Alikes: B. tetraneuris has densely hairy achenes and is not known from Weld Co. Flowering/Fruiting Period: Flowers in May. Habitat: Along ridges and low hills, in areas devoid of grassy vegetation, usually with other cushion plants. Elev. 5400-5800 ft. Photo Copyright © 1999 by J. Sanderson and J. Burt Distribution: Wyoming and Colorado (Weld Co.). References: O’Kane 1988. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992