Woolly throughout; stems simple, 6 inches to 2 feet high. Leaves narrowly oblong in outline, bi-pinnately dissected into numerous small linear divisions. Heads numerous, crowded into a rather contracted cyme; involucre oblong, nearly ¼ of an inch high; bracts lanceolate, green with brown translucent borders; rays 4—5, white, broadly obovate, notched and spreading, about the length of the involucre. Open ground, slopes and meadows throughout the region; flowering during July. [Sidenote: =Chrysanthemum leucanthemum= L. _Ox-eye Daisy. White Daisy._] Smooth, simple, 1—3 feet high, often tufted, the branches nearly erect. Leaves smooth, the basal oblong or spatulate, coarsely dentate or incised, narrowed into long, slender petioles; stem-leaves mostly sessile or partly clasping, 1—3 inches long, linear, pinnately-incised or toothed, the uppermost small, nearly entire. Heads few or solitary, 1—2 inches broad on long naked peduncles, rays 20—30, white and spreading; disc flat, bright yellow, bracts of the involucre lanceolate or obtuse, smooth with translucent margins. In open ground throughout the region; flowering during July. [Sidenote: =Artemisia frigida= Willd _Pasture Wormwood._] Simple or branching, silky-hairy and silvery throughout; stems numerous and spreading, about a foot high. Leaves mainly twice ternately divided into linear crowded lobes. Heads globular, about ⅛ of an inch in diameter, numerous, in more or less racemose heads; involucre pale, greenish-yellow, woolly; bracts narrow and herbaceous. In open dry ground and on banks throughout the Rockies at the lower altitudes; flowering in July. [Sidenote: =Artemisia discolor= Dougl. _Green Wormwood._] Stems slender, 9—12 inches high, spreading from a woody base. Leaves pinnately parted into narrow, linear or lanceolate, entire or spreading cut divisions and lobes, white beneath with cottony hairs, green and nearly smooth above. Heads ⅛ of an inch high, numerous in a wand-like panicle; involucre hemispherical-campanulate, greenish and smooth or nearly so, 20—30 flowered. On Rocky slopes throughout the region; flowering in June or July. [Sidenote: =Antennaria lanata= (Hook.) Greene. _Alpine Everlasting._] Densely white-woolly; stem simple, 2—6 inches high. Lower leaves spatulate-lanceolate, 1—1½ inches long, the upper linear with conspicuous papery tips. Heads several in a close cluster at the end of the stem, ½ an inch high; involucre nearly ¼ of an inch high, conspicuously woolly at the base, the inner bracts with conspicuous white tips, the outer straw-colour or greenish. An alpine plant in meadows and on slopes from 7000 feet up; flowering during July. [Sidenote: =Antennaria pulcherrima= (Hook.) Greene. _Tall Alpine Everlasting._]