a reer 
4/. Artemisia L. Sagebrush. 
Perennial herbs with ascending usually numerous stems and usually % | 
hoary foliage; leaves alternate, entire, pinnately toothed or dissected, 
variable. Heads small, often greenish, not showy except in mass, subglobose, 
borne in racemes or panicles; bracts of involucre closely overlapping, in 
2-4 series, more or less scarious; receptacle flat, rounded or rarely ovoid, 
usually naked. Flowers yellow or brown, the marginal ones unisexual, pistillate, 
usually functioning as ray-flowers. Achenes obovoid-columnar, without a pappus, 
usually glabrous. 
oHerbage entirely glabrous 
2 Leaves entire, 1.5-3 mm. wide /, As dracunculoides 
» Leaves once or twice pinnatifid Q A- biennis 
o Herbage pubescent, either silky or woolly 
Herbage thinly clothed with soft fine hairs 
co] y 
4 lieads 35.5-4 mn. in diameter a A. spithamea 
. 4 
3 
4 Heads 2.5-5 mms in diameter 4 Ae pacifica 
F 
 Herbage more or less wool]; or cobwebby beneath 
. : 
4 Receptacle hairy; plant a shrub $7A. absinthium 
4 Receptacle naked; plant an herb, perhaps 
6 thickenod, but not decidedly woodv at base GA. vulgaris 
1. Ae dracunculoides Pursh. 7 An erect perennial 40-120 cm. tall, 
the branches erect, slender, glabrous; leaves linear-lanceolate, acute, sessile, 
entire, glabrous, 1-2.5 cm. long, 1.5-3 mm. broad, 2-2.5 mn. broad, numerous; 
heads numerous, nodding, in greenish panicles,the short branches ef=—wheteh—ere> 
ascending or extended; bracts of the involucre in usually 4 series, the outermost 
subulate, rather fleshy, the inner broadly ovate or oval, scarious, with brownish 
>. 
midveins, all glabrous; flowers yellovish. > 
—> (A. dracunculus subsp. glauca Hall,), 
Seen only in the Kootenai Valley near Bonner's Ferry, Bpling 10446. 
§ 
4 
i 
4 
i ili ln aN A MS lis, 
eed 
