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. Righter Cypripediaceae (Lady’s Slipper Family) Look Alikes: C. calceolus var. parviflorum has a large yellow lip petal and leafier stems. Epipactis gigantea has taller stems and 3 or more alternate leaves. Flowering/Fruiting Period: June-July. Habitat: Open to densely shaded lodgepole pine or less frequently spruce-fir forests. Elev. 8000-10,500 ft. Photo Copyright © 1999 by S. Righter Distribution: California, Oregon, Washington, Idaho, Montana, Wyoming, Utah and Colorado (Boulder, Eagle, Grand, Jackson, Larimer, Routt and Summit Cos.). References: Cronquist et al. 1977; Fertig 1994b. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992