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 J. Coles Salicaceae (Willow Family) Look Alikes: S. lanata ssp. calcicola has densely woolly young twigs, and usually has longer catkins (4 cm in length). S. boothii is taller and has sparsely pubescent leaves with petioles over 5 mm long. Flowering/Fruiting Period: Catkins mature late June-mid July. Habitat: Calcareous fens. Elev. 9300 ft. Photo Copyright © 1999 by J. Sanderson Distribution: E Alaska and S Yukon, east to Newfoundland, south to British Columbia, Alberta, Montana and NW Wyoming; disjunct in Colo-rado (Park Co.). References: Dorn 1975; Hultén 1968, Viereck and Little 1972; Welsh 1974. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992