799 PLANT LIFE OF ALABAMA. 
Alleghenian and Carolinian areas. Ontario and southern New England, west to 
Minnesota; Ohio Valley to Missouri, Kansas, and Arkansas, and south along the 
inountains to South Carolina. 
ALABAMA: Mountain region. Rich wooded hills. Dekalb County, Mentone, 1,800 
feet altitude. Madison County, Montesano, 1,500 feet altitude. Clay County, rocky 
banks Talladega Creek, 1,000 feet altitnde. Flowers yellowish white; May. Not 
frequent. 
Type locality: ‘‘Hab.in Canada, Kalm.” 
Herb. Geol. Surv. Herb. Mohr. 
Polymnia canadensis radiata Gray, Syn. Fl. N. A.1, pt. 2: 238. 1884, 
Carolinian area. Illinois, Arkansas, and Kansas. 
ALABAMA: Mountain region. Madison County, flank of Montesano, on limestone 
rocks. Clay County. Flowers sordid yellow; not frequent. 
Type locality: ‘ Extends to Hot Springs, Arkansas, /. L. Harvey.” 
Herb. Geol. Surv. Herb. Mohr. 
Polymnia uvedalia L. Sp. Pl. ed. 2, 2: 1303. 1763. BEAR Foor, 
Ell. Sk. 2:471. Gray, Man. ed. 6, 270. Chap. F1.219. Gray, Syn. F1.N. A.1, pt. 
2:238. Coulter, Contr. Nat. Herb. 2: 204. 
Carolinian and Louisianian areas. Western New York, Pennsylvania, west to 
Missouri and Arkansas, south to Georgia and Florida. 
ALABAMA: Tennessee Valley to Coast plain. Shady borders of woods, copses, in 
rich soil. Lauderdale County, Florence (JZ. C. Wilson). Tuscaloosa, Montgomery, 
Clarke, Baldwin, and Mobile counties. Flowers yellow; April, May. 
Economic uses: The root, called ‘bear foot,” is used in domestic medicine. 
Type locality: ‘Hab. in Virginia.” 
Herb, Geol. Surv. Herb. Mohr. 
SILPHIUM L. Sp. Pl. 2:919. 1753. 
About 12 or 13 species, perennial herbs. ‘Temperate Eastern North America. 
Silphium laciniatum L. Sp. Pl. 2:919. 1753. Comrass PLANT, 
Silphium gummiferum Ell. 8k. 2:460, 1821-24. 
Ell. Sk.l.c. Gray, Man.ed.6,270. Chap. F1.220. Gray, Syn. Fl. N. A.1, pt. 2: 242, 
Coulter, Contr. Nat. Herb. 2: 205. ; 
Alleghenian to Louisianian area. Dakota, Minnesota, Ohio to Missouri, Arkansas, 
and Colorado; south from Tennessee to Georgia, west to Texas. 
ALABAMA: Prairie region to Lower division of Coast Pine belt. Montgomery 
County, prairies on Pintlalla Creek. Monroe County, Claiborne. Flowers July, 
August; not rare. 
Type locality: ‘Hab. in America septentrionali, Mississippi. . Collinson.” 
Herb. Geol. Surv. Herb. Mohr. ; 
Silphium terebinthinaceum Jacq. Hort. Vindeb. 1:t. 43. 1770. PrairRigE Dock. 
Ell. Sk. 2:463. Gray, Man. ed. 6,270. Chap. Fl. 220. Gray, Syn. Fl, N. A. 1, pt. 
2:242, | 
Alleghenian and Carolinian areas. Ohio, Michigan, west to Dakota, Nebraska, 
south to Arkansas, and from Kentucky along the mountains to Georgia. 
ALABAMA: Lower hills. Grassy openings, borders of fields. Calhoun County, 
Weaver (/. 4. Smith). August; local and rare. 
Type locality unknown (* Patriam ignoro”), 
Silphium compositum Michy. F]. Bor. Am. 2:145. 1803, SOUTHERN ROSINWEED. 
Ell. Sk. 2: 462. Chap. Fl. 220; ed.3, 241. Gray, Syn. Fl.N.A. 1, pt. 2:241, 
Pte and Louisianian areas. North Carolina, along the mountains to 
eorgia. 
ALABAMA: Mountain region to Central Pine belt. Dry gravelly or rocky ridges. 
Cullman County. Tuscaloosa County, 450 feet altitude. Clay County, 2,000 feet 
altitude, barren pine ridges. Talladega, Tallapoosa, and Chilton counties. Flowers 
July, August; frequent; most abundant throughout the arid siliceous pine-clad 
ridges of the Metamorphic region. 
Varies greatly in form and size of the leaves, from ovate pinnatisected (S. compos- 
itum var. michauxti Torr. & Gr.) to rotund; or uniform, cordatey more or less lobed 
(S. compositum var. reniforme Torr, & Gr.), and broadly ovate subcordate unequally 
and obtusely toothed (8. compositum var. ovalifolium Torr. & Gr.). 
Type locality: “Hab. in sylvis maritimis, a Carolina ad Floridam.” 
Herb, Geol. Surv, Herb. Mohr. 
