GENUS 45. 



THISTLE FAMILY. 



4. Gnaphalium palustre Nutt. Western Marsh 

 Cudweed. Fig. 4409. 



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'-8' high. Leaves 

 sessile, oblong, linear-oblong, or the lower spatulate, 

 obtuse or acutish, 6"-i2" long, i4"-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. 



5. Gnaphalium uliginosum L. Low or 



Marsh Cudweed. Wartwort. Mouse- 

 Fig. 4410. 



ear. 



Gnaphalium uliginosum L. Sp. PI. 856. 1753. 



Annual; diffusely branched from the base, or 

 the stems sometimes erect or ascending, ap- 

 pressed-woolly all over, 2 r -8' high. Leaves sessile, 

 spatulate-linear, linear, or the lower oblanceolate 

 or spatulate and narrowed into petioles, all ob- 

 tuse or obtusish, generally mucronulate, i'-ii' 

 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, sepa- 

 rately deciduous. 



In damp soil, Newfoundland to Virginia, west to 

 western Ontario, Saskatchewan, British Columbia and 

 Oregon, and Indiana. Also in Europe. July-Sept. 



6. Gnaphalium supinum L. Dwarf Cudweed. 

 Fig. 4411. 



Gnaphalium supinum L. Syst. Ed. 2, 234. 1767. 



Perennial, white-woolly, much tufted; stems sim- 

 ple, i'-3i' high. Leaves mainly basal, linear, acute, 

 narrowed at the base, sessile, 6"-i2" long, i"-2" 

 wide; heads few or several, capitate or short-spicate, 

 about 3" high; flowers yellowish; bracts of the invo- 

 lucre brown, glabrous, lanceolate or oblong-lanceo- 

 late, acute; pappus-bristles distinct, separately de- 

 ciduous. 



Alpine summit of the White Mountains of New Hamp- 

 shire, and of Mt. Katahdin, Maine ; Labrador and Green- 

 land, and on high mountains in Europe and Asia. Called 

 also mountain-cudweed. July-Aug. 



