372 
CARDUACEAE. 
1. Rudbeckia flava Moore. ( R. hirta A. Gray, in part; not L.) On hill¬ 
sides from N. D. and Wyo. to Colo.—Alt. 5000-10,000 ft.—Pike’s Peak; Gun¬ 
nison; Idaho Springs; South Park; Ruxton Dell; Engelmann Canon; Sangre 
de Cristo Creek; North Cheyenne Canon; mountains, Larimer Co.; George¬ 
town; Parlin; Baxter’s ranch; Bosworth’s ranch; Stove Prairie; Moon’s 
ranch; Ute; Pingree Hill; Poudre River; Laramie River; Rist Canon. 
2. Rudbeckia laciniata L. In wet places from Que. and Ida. to Fla. and 
Ariz.—Alt. 4000-9500 ft.—Durango; Williams’ Canon; mountains, Larimer 
Co.; Pagosa Springs; along Uncompahgre River, near Ouray; Ouray; Par¬ 
lin, Gunnison Co.; Boulder; Ft. Collins; Big Creek Gulch; Bosworth’s ranch, 
Stove Prairie; Elk Canon; Long Gulch. 
3. Rudbeckia ampla A. Nels. On river banks in Wyo. and Colo.—Baxter’s 
ranch; Poudre River flats; Ft. Collins. 
4. Rudbeckia montana A. Gray. In the mountains of Colo.—Wolcott, 
Eagle Co.; Gunnison Co.; Elk Mountains. 
47. RATIBIDA Raf. Cone-flower. 
Disk in fruit oblong, about 1 cm. long; pappus of 1 or 2 awn-like teeth without 
intermediate squamellae. 1. R. Tagetes. 
Disk in fruit cylindraceous, 2-4 cm. long; pappus with a series of squamellae. 
2. R. columnaris. 
1. Ratibida Tagetes (James) Barnhart. ( Lepachys Tagetes A. Gray) On 
plains from Kans. and Colo, to Tex. and Ariz.; also in Mex.—Alt. 4000- 
7500 ft.—Canon City; Iola; Cheyenne Wells. 
2. Ratibida columnaris (Sims) D. Don. ( Lepachys columnaris T. & G.) 
On plains from Sask. and B. C. to Tenn., Tex. and Ariz.; also in Mex.—Alt. 
4000-6000 ft.—Ute Pass, near Pike’s Peak; Ft. Collins; Denver; Piedra; 
New Windsor, Weld Co.; Boulder; Horsetooth Gulch. 
Ratibida columnaris pulcherrima (DC.) D. Don. Rays at least partly 
purple.—Ft. Collins. 
48. BALSAMORRHIZA Hook. Balsam-root. 
1. Balsamorrhiza sagittata (Pursh) Nutt. On hillsides from Alb. and B. C. 
to Colo, and Calif.—Alt. 7000-8000 ft.—Cerro Summit; Cimarron. 
49. WYETHIA Nutt. 
Involucral bracts nearly equal, in 2-3 series; stem not white. 
Plant glabrous. 1. W. amplexicaulis. 
Plant densely pubescent. 2. W. arizonica. 
Involucral bracts unequal, the outer much shorter in 5-6 series; stem white. 
3. W. scabra. 
1. Wyethia amplexicaulis Nutt. In mountain valleys from Mont, and B. C. 
to Colo, and Nev.—Alt. about 9000 ft.—Rogers; divide road to Steamboat 
Springs; Honnold; Continental Divide, Routt Co.; Arapahoe Pass; Camp 
Creek; Spicer. 
2. Wyethia arizonica A. Gray. Near mountain streams from Colo, and 
Utah to Ariz.—Alt. 7000-8000 ft.—Mancos; Cerro Summit; Rifle, Garfield 
Co.; Los Pinos (Bayfield); Chicken Creek, west of Mt. Hesperus; Dolores; 
Gunnison Co. 
