100 COMPOSITAE 
1. WYETHIA Nutt. Journ. Acad. Phila. 7: 39. pl. 5. 1834. 
Leafy-stemmed, balsam-scented, perennial herbs, glabrous, pubescent, or tomentose, 
resinous, usually from a thick, vertical, fusiform or subcylindric caudex, sometimes branch- 
low the ground to p roduce cylindrical underground stems, those above the ground 
ple or branched pit erect or ascending. Basal leaves often large, the stem-leaves 
lacerate squamellae and often 1-4 slender awns or reduced to teeth or lacking. 
[ Named for Captain Nathaniel J. Wyeth, the eae of we original species, with whom 
Nuttall subsequently crossed the continent. 
A genus of 14 species, of the western United States and British Columbia. Type species, Wyethia helian- 
sess «Ariki hybrids have been reported by W. A. Weber (Amer. Midl. Nat. 35: 400-452. 1946) as occurring 
not infrequently in the sections Alarconia and Euwvyethia. 
Leaves essentially uniform, ovate to orbicular, broad at base and all on definite petioles, without conspicuous tufts 
of basal leaves. 
Plants low, 0.5—3.5 dm. high; 1 
Heads axillary, much ian by the sahiending leaves; rays few (5-8), about 1.5 : was gone 
W. ovata. 
Heads terminal, the inflorescence surpassing the leaves; rays more numerous (8-12), hee 3 cm. Jong. 
2. W. bolandert. 
Plants tall, 4-10 dm. high; involucres hemispheric. 
ays present, 2-5 cm. long 
Leav 
es green. co — rely sparsely senna er on the nerves; plant beri viscid; achenes 
with saluute, Gatdatios m, awnless pappu . W. reticu lata. 
Leaves cinereously pi ose-subtomentose bene on — glandular but not resinousviai — with 
conspicuous pappus bearing short stou 4, 
Rays ys. 5: enusta. 
saeege: ot uniform, mostly oblong, elliptic, or lanceolate, the basal tufted, usually much larger aa the often 
ssile cauline leaves 
In vole ne Shits Re 2. 5-8.5 cm. high, ae apres usually equaling or surpassing the rays, the phyllaries 
rou 
, oblong or lanceolate to broadly vate. 
Ponte _stipitate =e ap poe _jhren ughout, pa glabrous; achenes obscurely slander Aira garencigd 
t land 
Plants gray-tomentose throughout, ponent glabrescent in age; achenes ae above; receptacular 
bracts ery pubescent abov Mi | gs heleniondes. 
shorts smaller, 1.3—4 cm. high, ies much shorter than the ray 
eet get somewhat floccosely gray-tomentose throug ne ut at t when young, somewhat gla- 
eo ent in age but with persistent tomentum at least on the ceils, me apex of eerie cles =, 
Plants _~ or ree never tomen 
Plants definitely —. or ecw nitinnees PEbeAe above. 
Siva pale yellow to whit ly ciliate or ciliolate. . W. helianthoides. 
Rays bright ye has leave t ob ciliate. e W. aerate 
Plants oe ‘toomid so throughout or thm puberulous on leaves or hirsute on involucr 
S gla 
Upper stem-leaves narrowed to base; plant not strongly resinous. . W. longicaulis, 
Upper stem-leaves conspicuously clasping; plant usually strongly resinous. : _ 
12. W. amplexicaulis. 
1. Wyethia ovata Torr. & Gray. Southern Wyethia. Fig. 5130. 
W yethia ovata Torr. & Gray ex het in ae. ch Mil. Rec. 143. 1848. 
W yethia coriacea A. Gray, Proc. Amer. Acad. 1 1876. 
ect — var. funerea Jepson, eohe FI. ce ae 1170. 1935. As to type, Aster tortifolius var. funereus 
Jep 
es cai from a thick rootstock ; stems Rima several, 5-30 cm. high, stout, densely and 
loosely canescent-pilose or subtome ents. "becom ing glabrate, simple or little-branched, bearing a 
few scales at base, few-lea bier Leaves much surpassing the stems and flow the blades sub- 
orbicular to oval or broadly ovate, 5-20 m. long, about woudl the eae ee rounded to 
ubcordate at base, entire, ernek FP ed or obscurely tri omg rved and strongly re- 
ticulate, subcan escently subappr. a or subtomen “soe i _ age green and often glabrescent ; 
heads usually solitary in the axils and at tip of stem, short-p — eoictice cre rather narrowl 
campanulate, 2-5.8 cm. high, the outer eee es 4-6, lane tie obovate, usually acuminate, 
usually sauiling or surpassing t the rays, pide asco -herbaceous, aii pubescent like the leaves 
