Artemisia manca

Artemisia manca Rydberg, sp. nov
A low cespitose perennial, almost acaulescent; stems 5-7 cm. high, decumbent at the base, with a few reduced leaves, purple, sparingly villous when young, soon glabrate; leaves mostly basal, 1-2 cm. long, bipinnatifid, silvery-silky; primary divisions 3-5, the secondary ones mostly 3, narrowly linear-oblanceolate; stem-leaves small, mostly ternate or the upper simple, linear or with linear divisions; inflorescence spike-like; heads short-pedunded or subsessUe, subtended by small linear leaves, the upper ones crowded; involucre hemispheric, 4—5 mm. broad, and nearly as high; bracts about 25, purplish, sparingly pubescent, with a prominent midrib, the outer oblong, nearly as long as the inner ones, which are broadly oval, rounded at the apex; ray-flowers 12-15; corollas 1.5 mm. long; achenes 1.5 mm. long; disk-flowers 25-30; corollas cylindro-campanulate, 2 mm. long, tipped with brown-purple; style 1.5 mm. long.
Type collected at Cold Bay, Alaska, July 31, 1904, C. V. Piper 4223 (U. S. Nat. Herb. no. 420675).