This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol3", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Gnaphalium decurrens Ives, Am. Journ. Sci. 1: 380. pl. 1. 1819.
Annual or biennial, similar to the two preceding species, fragrant; stem very leafy, glandular-viscid, corymbosely branched above, 2°-3° high. Leaves lanceolate or broadly linear, acutish at the apex, densely white-woolly beneath, glabrate or loosely woolly above, sessile and decurrent on the stem at the base, 1'-3' long, 2"-3" wide, or the lowest shorter and slightly spatulate; heads in several or numerous corymbose glomerules of 2-6, about 3" high; bracts of the involucre yellowish-white or brownish, ovate, acutish or the inner lanceolate and acute, the outer woolly at base; pappus-bristles distinct; achenes glabrous.
In open, moist or dry places, Nova Scotia to Pennsylvania, West Virginia ?, Ontario, British Columbia, Michigan, south in the Rocky Mountains to Arizona. Sweet balsam. Balsam-weed. July-Sept.
Gnaphalium palustre Nutt. Trans. Am. Phil. Soc. (II) 7: 403. 1841.
Annual; diffusely branched from the base, densely but loosely floccose-woolly all over, 2'-%' high. Leaves sessile, oblong, linear-oblong, or the lower spatulate, obtuse or acutish, 6"-12" long, 1 1/2"-3" wide; heads about 2" high, several together in leafy-bracted glom-erules; involucre more or less woolly, its bracts linear or lanceolate, acute, white or pale yellow; pappus-bristles distinct, separately deciduous.
In moist wet soil, Saskatchewan to Montana, western Nebraska and New Mexico, west to British Columbia and California. May-Aug.
Gnaphalium uliginosum L. Sp. Pl. 856. 1753.
Annual; diffusely branched from the base, or the stems sometimes erect or ascending, ap-pressed-woolly all over, 2'-8' high. Leaves sessile, spatulate-linear, linear, or the lower oblanceolate or spatulate and narrowed into petioles, all obtuse or obtusish, generally mucronulate, 1'-1 1/2' long; heads about 2" high, numerous in dense leafy-bracted terminal glomerules; bracts of the involucre oblong or oblong-lanceolate, brown, the outer obtuse or obtusish and more or less woolly, the inner acute; pappus-bristles distinct, separately deciduous.
In damp soil, Newfoundland to Virginia, west to western Ontario, Saskatchewan, British Columbia and Oregon, and Indiana. Also in Europe. July-Sept.
Gnaphalium supinum L. Syst. Ed. 2, 234. 1767- Perennial, white-woolly, much tufted; stems simple, l'-31/2' high. Leaves mainly basal, linear, acute, narrowed at the base, sessile, 6"-12" long, 1"-2" wide; heads few or several, capitate or short-spicate, about 3" high; flowers yellowish; bracts of the involucre brown, glabrous, lanceolate or oblong-lanceolate, acute; pappus-bristles distinct, separately deciduous.
Alpine summit of the White Mountains of New Hampshire, and of Mt. Katahdin, Maine; Labrador and Greenland, and on high mountains in Europe and Asia. Called also mountain-cudweed. July-Aug.