Rare Plant Field Guide

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Photo Copyright © 1999 by B. Jennings Iridaceae (Iris Family) Look Alikes: S. montanum and S. idahoense var. occidentale have deep blue flowers. The outer bract of S. idahoense var. occidentale is subequal to the inner bract. S. demissum usually has more than one pedunculate spathe (bract below the inflorescence) arising from the axil of a leaf-like bract on the stem, while S. pallidum has a single sessile spathe. Flowering/Fruiting Period: Late June-July/July-August. Habitat: Margins of streams, wet meadows and fens. Elev. 7900-9500 ft. Photo Copyright © 1999 by J. Sanderson Distribution: SE Wyoming and Colorado (Jackson, Larimer, Park and Saguache Cos.). References: Cholewa and Henderson 1984; Hartman 1992; Jennings 1990a; O’Kane 1988. Please send comments to: Colorado Natural Heritage Program 254 General Services Building, Colorado State University · Fort Collins, CO 80523 · (970) 491-2992