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 S. Goodrich Cyperaceae (Sedge Family) Look Alikes: C. tenuiflora has more than one spike per head, and the spikes are broader. C. dioica var. gynocrates has fatter, reflexed perigynia. C. geyeri is a more robust plant with much broader leaves and only 1-3 conspicuous fat perigynia separated on the rachis from the staminate flowers. Flowering/Fruiting Period: June-August. Habitat: Rich fens; graminoid dominated mineral rich wetlands. Elev. 9000-10,000 ft. Photo Copyright © 1999 by S. Goodrich Distribution: Alaska, Yukon to Nova Scotia, south to California, Idaho, Utah, Florida, Texas and Colorado (Clear Creek, Grand, El Paso and Park Cos.). References: Atwood et al. 1991; Britton 1901; Cronquist et al. 1977; Great Plains Flora Association 1986; Hermann 1970; Welsh 1974. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992