674 PLANT LIFE OF ALABAMA. 



ALABAMA : Tennessee Valley. Central Pine belt. Coast plain. Rich shady woods. 

 Landerdale County, Florence (M. C. Wihon). Tuscaloosa County (E. A. Smith). 

 Mobile County, Mount Vernon. Flowers lavender-blue; April. Not rare. 



Type locality : " Hab. in Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



Amsonia ciliata Walt. Fl. Car. 98. 1788. NARROW-LEAVED AMSONIA. 



Tabernaemontana angmtifolia Ait. Hort. Kew. 1 : 300. 1789. 



Amsonia angwtifolia Michx. Fl. Bor. Am. 1: 121. 1803. 



Ell. Sk. 1 :314. Chap. Fl. 360. Gray, Syn. Fl. N. A. 2, pt. 1: 81. Coulter, Contr. 

 Nat. Herb. 2:262. 



Louisianian area. North Carolina to Florida, west to Texas and Arkansas. 



ALABAMA: Central Pine belt to Coast plain. Dry light soil. Bibb County (/:. .1. 

 Smith). Baldwin County, Bon Secour, loose sands, open pine woods. Flowers pale 

 blue; June. Not frequent. 



Type locality : South Carolina. 



Herb. Geol. Surv. Herb. Mohr. 



APOCYNUM L. Sp. PI. 1 : 213. 1753. 



About 8 species, perennial herbs, southern Europe to temperate Asia. North Amer- 

 ica, 5. 



Apocynum cannabinum L. Sp. PI. 1 : 213. 1753. 



CANADIAN HEMP. INDIAN HEMP. CHOCTAW ROOT. 



Ell. Sk. 1 : 315. Gray, Man. ed. 6, 338. Chap. Fl. 358. Gray, Syn. Fl. N. A. 2, pt. 1 : 

 83. Wats. Bot. Calif. 1 : 473. Coulter, Contr. Nat. Herb. 2 : 262. 



CUBA. 



Carolinian find Louisianian areas. Ontario to New England, west to Minnesota, 

 south through the Ohio Valley to the Gulf, from Florida west to Texas and Ari- 

 zona, and from southern California to Oregon. 



ALABAMA: Coosahills. Central Prairie region to Coast plain. Damp grassy banks. 

 St. Clair County, Shoal Creek. Dallas County. Baldwin County, Point Clear. 

 Flowers pale purplish. Frequent. One and one-half to 2 feet high from a woody 

 cylindrical nearly horizontal root. 



Economic uses: The root is the "Canadian hemp root" or " Apocynum" of the 

 United States Pharmacopoeia; the "squaw root" of the Choctaw Indians. 



Type locality: "Hab. in Canada, Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



TRACHELOSPBRMUM Lemair, Jard. Fleur. 1 : t. 61. 1851. 

 Seven species, Japan, Himalayan India. North America, 1. 



Trachelospermum difforme (Walt.) Gray, Syn. Fl. N. A. 2, pt. 1 : 85. 1878. 



CLIMBING DOGBANE. 



Echites difformis Walt. Fl. Car. 98. 1788. 



Forvleronia difformis A. DC. Prodr. 8 : 437. 1844. 



Ell. Sk. 1: 312. Gray, Man. ed. 6, 338; Syn. Fl. 2, pt. 1: 85. Chap. Fl. 359. Coul- 

 ter, Contr. Nat. Herb. 2:263. 



Carolinian and Louisianian areas. Southern Virginia to Florida, west to Texas. 



ALABAMA: Tennessee Valley to Coast plain. Low, wet, alluvial banks. Morgan 

 County, Cedar Plains. Walker County (E. A. Smith). Tnscaloosa, Montgomery, and 

 Mobile counties. Flowers cream-color; June, July. Common. Trailing and climb- 

 ing over luishes. Perennial. 



Tyt)e locality: South Carolina. 



Herb. Geol. Surv. Herb. Mohr. 



ASCLEPIADACEAE. Milkweed Family. 



ASCLEPIAS L. Sp. PI. 1 : 214. 1753. 



Eighty-five species, perennial herbs, cooler temperate and tropical regions of both 

 hemispheres. North America, 55. 



Asclepias tuberosa L. Sp. PI. 1 : 217. 1753. BUTTERFLY WEED. 



Ell. Sk. 1 : 325. Gray, Man. ed. 6, 340. Chap. Fl. 365. Gray, Syn. Fl. N. A. 2, pt. 1 : 

 89. Coulter, Contr. Nat. Herb. 2 : 265. 



Alleghenian, Carolinian, and Louisianian areas. Ontario; New England west to 

 Minnesota, Dakota, and Colorado, south to Florida, Texas, and Arizona. 



