408 COMPOSITAE 
eee: ray-florets 5-9; disk-florets 10-30, fertile; achenes ellipsoid, glabrous; receptacle 
glabro 
oe res of streams below the high-water level, Transition Zones; mostly along the Columbia River and its 
hie sepa in Washington alt cnn sporadically to western Montana and southern British Columbia. Type 
ocality: ‘“‘North-West coast of Am July—Sept. 
ne sia Bdge otti +4 Bess oa Hook. Fi. Bor. Amer. 1: 1833. Differs from A, lindleyana py 
e fra d 
filiform chee tas than 1 mm. wie, green, the ‘Gane closely revolute. This is the for Saal found in the poo 
pars a the Co lumbia nie Tah Plants with characters intermediate between this and 4. dleyana are also com- 
this area, and it is probably at best only a variety of that species. Type locality: bi West America.”’ 
8. Artemisia ceurigcanaai Bess. Michaux’s Mugwort. Fig. 5700. 
Artemisia michauxiana Bess. in Hook. + Bor. Amer. 1: 324. 1833. 
Artemise discolor r Dougl. ex Bess. Balt oe Nat. Mosc. 9: 46. 1836. 
subsp. discolor Hall & Cle em. Carnegie Inst. pie Publ. No, 326: 74, 1923. 
Artemisia teidears ris var. discolor Jepson, Man. FI. Pl. Calif. 1141. 25: 
— —- — machonstone St. - hn, — Stud. st aa: Wash. 1: 106. 1929. 
Artem ulgar var. typica St. John, loc. 
Artemisia discolor var. ‘and i A gece: Rhodora 32: 27. po 
dulifer E. Peck, Man. Pl. Oregon 766. 1941, 
Pe cnet ne & fe dm. a sometimes taller; stems several from a woody caudex. Leaves 
eee beneath at least me n young, genera ally glabrate and green above, fier crowded, 
2-5 cm. long, bipinnatifid with secondary lobes again toothed, the lobes linear, widely spreading 
u 
ead 
mm. e, the phyllaries se or Se atag ts iene ose; ray-florets 9-12; ye ia 15-38, 
fertile ; “achenes ellipsoid, glabrous ; receptacle a aneo 
sites in the mountains, cei 8 ae fos a ae Mou ns of Washington north to British 
Columbia, Alberta, and northern Utah, also spr adios ily, in soulanitare. pind California, and Nevada. Type 
ocality: ee Kettle Falls and sources of the Cobsunibis. ” May—Aug. 
This s es, at least in the southern part of its range, seems to intergrade somewhat with A. Iudoviciana 
subsp. secseta. 
9. Artemisia biénnis Willd. Biennial Sagewort. Fig. 5701. 
Artemisia biennis Willd. Phytog. 11. 1794. 
annual or biennial herb, 3-30 dm. tall ; stems simple below, erect, striate, glabrou 
€ seg 
» © us, 
broader, the outer phyllaries narrow an e inner ones with only a green nian 2 ind broad 
scarious margin; ray-florets 6-25; disk- aes 15-40, fertile ; sain ellipsoid, glabrous; recep- 
rous. 
waste places and stream banks, Upper Sonoran and Transition Zones; introduced occasionally 
throughout our area and eastwar - AS. weed; native in British Columbia and the northern Rocky Mountains. 
Type locality: erroneously given as “New Zealand.” Aug.—Oct 
isia 4nnua 4 apr rooted Sania’: 3-30 dm. tall; stem simple below, erec 
flexuous, striate, glabrous. Leaves petiolate, 2-10 c¢ long, glabrous, pinnatifid to se coe 8 the segments 
lanceolate or acing ludigeeecente broad and open, selon, Pang - id the heads pe led, =e 
involucre glabrous, 1-2 mm. highs slightly broader, outer phyllaries row and green, the | er ones with oa “ a 
green midrib and a broad ir us =e in; ray-florets 5-10; disk- pad a0, Fig) bs anes nartowly turbi- 
nate, glabrous; receptacle gla’ oraoe. = 9. Fields sid waste pistes) nati asia, naturali gel Sal ae 
and astern United States, rare and orohahty not established in our area, Ty oe nv re Siberia. 1 Sage- 
wort 
se Artemisia californica sy Coast Sagebrush or Old Man. Fig. 5702. 
Art 7 lifornica Less. Linnaea 6: 523. 18 
Artemisia fisheriana Bess. Nuov. Mem. Soc , Nat pres 33 21. 1834. 
Artemisia Gikchiane eS Bess. op. cit. 
Arteta poneee Nutt. Trans. Amer. Phil. oe Il. 7: 397. 1841. 
id. utt. op. cit. 399. 
Chrossostephium foliosum Rydb. N. ee ne 34: 243. 1916. 
Chrossostephium californicum Rydb. 
Rounded sh sem ‘ab higher ; stems ac ected the older with brown 
fibrous bark, the twigs erect, stout, striate, and — red witha nearly white, dense canes- 
ce. Leaves sessile, terna ates Bsa ately, or sometimes bipnnately divided into long narrow 
segments 0.5-1 mm. wide, minutely vag sae cinereous or canescent, with strongly revolute 
margins, usually some borne in pic n the axils of others, fascicled and upper leaves. reduced 
mm : s a 
thick back and broad scarious margin, canescent ; ae -florets 6-10: pied florets 15-30, fertile; 
achenes ee Ween, wie minute oeacinn crown, resinous-granuli ferous ; receptacle es- 
gis / glabro 
Exposed uae Upper Sonoran and Arid Transition Zones; Coast Ranges from north of San Francis 
Bay south to northern L, wer California and on adjacent ora extending eastward in southern California pf 
edge of Colorado Desert. Ory ype locality: California. Aug.-Oct 
— californica var. insularis (Rydb.) Munz, Man. S. Calif. 575. 1935. (Crossostephium insulare 
Rydb. N. er. FI. 34: 244, 1916.) Differs from A. californica var. californica in that the leaves are little or 
