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 by B. Jennings Adiantaceae (Maidenhair Fern Family) Look Alikes: The only Adiantum found at lower elevations. It is distinctive in its broad, delicate, fan-shaped leaflets. Spore-Producing Period: June-September. Habitat: Dripping cliffs and seeps, especially on sandstone orcalcareous rocks or in highly mineralized soil. Elev. 4800-7800 ft. Photo by B. Jennings Distribution: S United States, extending N to Virginia, Missouri, California, Utah and Colorado (Baca, Mesa, Moffat, Montezuma, and Montrose Counties. References: Flora of North America Editorial Committee 1993; Larson 1993; Naumann 1990a. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992