[Vor. 3 
98 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
1882, Forwood (Gray Herb. and U. S. Nat. Herb.) ; Meadow 
Creek, 9 Aug. 1894, Nelson 906 (Gray Herb. and Greene 
Herb.); Bridger's Pass, coll. of 1856, H. Engelmann (Gray 
Herb.) ; Soldier Springs, Aug., 1891, Nelson 177 (U. S. Nat. 
Herb.). 
Colorado: Rocky Mountains, coll. of 1861, Parry 19 (Phil. 
Acad. Nat. Sei, Herb.); Rocky Mountains, Lat. 39°41’, coll. 
of 1862, Hall € Harbour 332 in part (Mo. Bot. Gard. Herb. 
and Gray Herb.) ; Lake John, 19 Aug., 1898, Shear € Bessey 
3990 (U. S. Nat. Herb.) ; near High, 19 Aug., 1898, Shear Ф 
Bessey 4005 (U. S. Nat. Herb.). 
Idaho: grassy bog, One Thousand Springs Valley, alt. 2040 
m., 7 Aug., 1895, Henderson 3671 (U. S. Nat. Herb.). 
Oregon: ‘‘ Plains of the Oregon, near the Wahlamet,’’ Nutt- 
all (Gray Herb.), түре. 
38. S. hyperborealis Greenm. Monogr. Senecio, I. Teil, 24. 
1901, and in Engl. Bot. Jahrb. 32:20. 1902; Ann. Mo. Bot. Gard. 
1:264. 1914. 
S. resedifolius Hook. Fl. Bor. Am. 1:333, pl. 117. 1834, in 
part, not Less.; DC. Prodr. 6:347. 1837, in part; Torr. & Gray, 
Fl. N. Am. 2:445. 1843, in part; Gray, Syn. Fl. N. Am. 1?:390. 
1884, and ed. 2, 1886, in part; Macoun, Cat. Canadian РІ. 267. 
1884, in part, 1. e., as to plant of Richardson. 
Stems erect or nearly so, one to several from a perennial 
base, 1 to 2 dm. high, simple or branched, white-tomentose at 
the base and in the leaf-axils; lower leaves obovate and 
erenately margined to sublyrate or pinnately divided with 
rather remote obtusely dentate divisions, including the petiole 
4 to 10 em. long, 1 to 2.5 em. broad; stem-leaves sessile, more 
or less pinnatisect, the uppermost reduced to lance-attenuate 
entire bracts; heads solitary or few terminating the stem and 
branches, 8 to 12 mm. high, radiate; involucre campanulate, 
sparingly calyculate, glabrous; bracts of the involuere about 
13, lanceolate, acute, 5 to 6 mm. long; ray-flowers 10 to 12, 
rays yellow; disk-flowers rather numerous; achenes hirtellous- 
puberulent along the angles. 
Distribution: Arctic northwest America. 
