SUNFLOWER FAMILY 405 
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Pieaeehirants at the summit ; enes nearly ey lind. Cnaesel g-hairy ; receptacle glabrous. 
Open rocky ledges and talus poset at high elevations, Boreal ate pra diecgt nd Cascade be snnigs of 
Washington to aieikn. Menchurid, and Kurile Islands. Type locality: Soongaria, Scnchuris. July—Sep 
5693. Artemisia norvegica 5694. Artemisia trifurcata 
XH Raate: ludoviciana Nutt. Western Mugwort. Fig. 5695. 
Artemisia Iudoviciana Nutt. Gen. 2: 143. 1818. 
grist gnaphalodes Mar loc. cit 
misia Intous ciana var. gnapha rs orr. & Gray, FI. fc Reng 2: 420. 1843. 
var. gnaphalodes sates Rev. Gen. Pl. 
Artemisia ute ris var. ludoviciana Kuntze, loc. cit. 
rtemisia vulgaris subsp. Iudoviciana Hall & Clem. Carnegie Inst. Wash. Publ. No. 326: 76. 1923. 
Artemisia vulgaris subsp. gnaphalodes Hall & Clem. op cit. 77 
Artemi a ubs: eck, op. cit. No. 520: 330. 1940 
Perennial herb, 3-10 dm. tall; stems herbaceous to base, slender to moderately gmp or 
nu ; g nsely white-tomentose on both sides or loosely floccose t and 
glabrate above, linear to lanceolate, oblanceolate or elliptic, pear or few-toothed or “tol sey espe- 
cially near the apex; scence paniculiform, us ll ther elongate and Seg the heads 
often in glomerules ; involucre ovoid to campanulate, 2-3 mm. wide, mm. hig ually densely 
tomentose, occasionally glabrate ; ray-florets 5-12; disk-florets Fil fertile ; gp a ellipsoid, 
mento: rate 
glabrous, sometimes resinous-granuliferous ; receptacle abcnes 
Lowlands and mountains up to middle elevations, Arid Transition Fat ne pper aaa Zones; Washington 
south to California and north and bias? to Alberta, Indiana, and Arkansas; rare west of the Cascade Mountains 
and —— Nevada. Type locality: e banks of the Mississippi River, near St. Louis. July—Sept. 
misia ludoviciana subs pe (Woot.) Keck, Proc. Calif. Acad. IV. 25: 446. 1946. carters 
microcephale ale ot. Sue ares Club 25: 455. 1898, not Hillebr. ri A. albula Woot. Contr. U.S. 
Herb, 16: 191 i. mostly 1-2 cm. long, lanceolate, en n both s 
invol mm. hig densely touseteaees ray-florets 8-11; disk-florets 
8-13. Mountains of southern ‘California east to New Mexico and souther Bilge cshors south to northern Lower 
California, Sonora, and a huahua. Type locality: Organ Mountains, Dona aon County, New Mexico. May—Oct. 
Artemisia 1 ici bsp. candicans (Rydb.) Keck, Proc. Calif. —_ Ty. ig 447. 1946. (Artemisia 
ludoviciana var. latiloba Nutt. penne. A Amer. Phil. Soc. II. 7: 400. 1841; 4. candicans Rydb. Bull Torrey Club 
24: 296, 1 A. latiloba Rydb. N.Y. Bot. Gard. 1: 429, 1900; a piaiyphotia Rydb. N. America 
34: Psst 6; A. vulgaris subsp. cendicons Hall & Clem. Carnegie Inst.” ash eee 73. _v 
gar ie M. E. Peck, Man. Pl. Oregon 766. 1941.) Principal peg S40 ) long, more or less 
parted. po divi ded, often deeply pin mpatifid with some of the lobes again seme’ or oe Age on 
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Attemiais ludoviciana piles incémpta (Nutt.) Keck, Carnegie Inst. Wash. Publ. No. 520: 327. 1940. 
a gar erg Nutt. Trans. Amer. Phil. Soc. II. 7: 400. oo; A discolor var. incompta A. Gray, Syn. 
_ N. me ea: ‘A. atomifera Piper, Contr. U.S. erb. 11: 588. 1906; A. ludovtictana var. 
Bh vee E. “Jones, B Univ. Mont. Biol. Ser. 15: 48. 1310: es vulgaris subsp. michauriana var, tn- 
a St. John, esearch —S St. Coll. Wash. 1: 106. 1339.) Stems 3-9 dm. tall; principal leaves 2-8 cm 
