Pacific Alpine Wormwood
Fish. ex Bess.]
Leila M. Shultz in Flora of North America (vol. 19, 20 and 21)
30-50(-100) cm (densely cespitose), mildly aromatic (not rhizomatous, caudices subterranean, branches clothed with persistent leaf bases).
relatively numerous, ascending, brown, simple, hairy.
mostly basal (cauline mostly 2-4, smaller), whitish; blades (basal) flabellate, 0.5-1(-2) × 0.5-0.8(-1.5) cm, relatively deeply lobed (lobes 5-9, linear), faces strigillose.
(3-10, erect or nodding, peduncles 0 or to 15 mm) in subcapitate to corymbiform arrays 1-5 × 2-4 cm.
broadly campanulate, 3-4 × 3.5-5 mm.
lanceolate (margins brownish), densely pilose.
pistillate 4-5; bisexual 10-15; corollas yellow (3-5-toothed), 2-2.5 mm, glabrous or sparsely pilose.
ellipsoid (flattened, margins ribbed), 1-1.5 mm, glabrous.
= 18, 27, 36, 54. Flowering mid summer. Arctic and alpine tundra and sandy slopes; 0-1000 m; Yukon; Alaska.
is similar to
; it can be distinguished by its more deeply lobed leaves and sparser indument.
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