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 Athyriaceae (Ladyfern Family) Look Alikes: Distinguished from other Cystopteris species by its broadly triangular fronds with three main branches. Spore-Producing Period: June-October. Habitat: Moist, rich soil in shady spruce-fir forests. Elev. 9000-11,000 ft. Photo Copyright © 1999 by B. Jennings Distribution: Eurasia; Greenland; Canada; Alaska, Montana and Colorado (Chaffee, Conejos, Grand, Gunnison, Ouray, San Juan and Summit Cos.). References: Flora of North America Editorial Committee 1993; Welsh 1974. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992