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 Onagraceae (Evening-Primrose Family) Look Alikes: O. caespitosa ssp. macroglottis has all basal leaves, notched corolla lobes, and a perennial life cycle. Flowering/Fruiting Period: Flowers mid May-June. Habitat: On compacted silty clays to looser rocky and sandy soils in open grasslands. Elev. 4700-6100 ft. Photo Copyright © 1999 by B. Jennings Distribution: Colorado endemic (El Paso, Fremont, Huerfano, Las Animas, Pueblo and Otero Cos.). References: Wagner et al. 1985; Wagner 1983. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992