756 PLANT LIFE OF ALABAMA. 
Nabalus altissimus (L.) Hook. Fl. Bor. Ain. 2: 294. 1834.0 TALL Wairrk Lerroce, 
Prenanthes altissuma L. Sp. Pl. 2: 797. 1753. 
P. deltoidea El. Sk. 2: 257. 1824. 
EIL Sk. le. Gray, Man, ed.6, 802. Chap. FL 251. Gray, Syn. FIN. ALI, pt. 2: 434, 
Canadian to Carolinian area. Newfoundland, Ontario, and New England; Ohio 
Valley to Missouri and Arkansas, and from New York south along the mountains to 
Georgia, 
ALABAMA: Mountain region. Lower hills. Rich woodlands. Cleburne County 
(Dr. A. Smith). ‘Tuscaloosa County, August, September, 
Type locality: “ Hab. in Virginia, Canada,” 
Herb. Geol. Surv. Ilerb, Mohr. 
SONCHUS L. Sp. PI. 2: 798. 1755, 
Forty-five species, temperate Europe. Annual weeds diffused in North America, 4. 
Sonchus asper (L.) All. Fl. Pedem, 1: 222. 1785, PRICKLY SOW-THISTLE. 
Sonchus oleraceus var, asper L. Sp. Pl. 2: 794. 1753, 
S. carolinianus Walt. Fl. Car. 192. 178%. 
S, spinulosus Bigel. Fl. Bost. ed. 2, 290, 1824, 
KM. Sk. 2:255. Gray, Man. ed. 6, 305. Chap. F1.258, Coulter, Contr. Nat. Herb. 
22250. 
Canadian zone to Louisianian area. Over the continent from Canada to Florida 
and British Columbia to California. 
ALABAMA: Over the State. Common weed in cultivated and waste ground, 
Flowers March to June. Annual. 
Type locality: ‘‘ Hab. in Europae cultis.” 
Hlerb. Geol. Surv. Herb. Mohr. 
Sonenus oleraceus L. Sp. Pl. 2: 794. 1753, COMMON SOW-THISTLE, 
Ell. Sk. 2:254. Gray, Man. ed.6, 305. Chap. F1.253. Coulter, Contr. Nat. Herb. 
2: 250, 
Distribution as in the last. 
ALABAMA: With the above. February to July. Annual. 
Type locality: ‘ Hab. in Europae cultis.” 
Herb. Geol, Surv. Herb, Mohr. 
Sonchus tenerrimus L. Sp. P]. 2: 794. 1753. 
SOUTHERN EUROPE, 
Adventive on ballast in South Carolina and southern California. 
ALABAMA: Mobile County, fugitive on ballast. Rare. Annual. 
Type locality: ‘ Hab. in Monspelii, Florentiae.” 
Herb. Geol, Surv. Herb. Mohr. 
AMBROSIACEAE. Ragweed Family. 
IVA L. Sp. Pl. 2:988. 1753. 
About 12 species, North American. Atlantic, 5. 
Iva ciliata Willd. Sp. Pl. 3:2386. 1804. ANNUAL MARSH ELDER. 
Iva annua Michx. FI. Bor, Am, 2: 184. 18038. Not L. 
Gray, Man, ed. 6,272, Gray, Syn. FIL.N. A. 1, pt. 2: 246. Coulter, Contr, Nat. Herb. 
2: 208, 
Alleghenian to Louisianian area. Illinois west to Nebraska, southern Arkansas, 
north western Louisiana, Texas, and New Mexico. 
ALABAMA: Coast plain. Mobile County. In cultivated fields. Adventive with 
grain seed from the West. Flowers in July. The form with elongated floral bracts, 
Annual, 
Type locality: ‘‘ Hab. in America boreali.” 
Herb. Mohr. 
Iva imbricata Walt. Fl. Car. 232. 1788. SEASIDE MARSH ELDER. 
E1l.Sk.2:475. Chap. P1222.) Gray, Syn. FIN. A. 1, pt. 2: 246. 
Louisianian area. North Carolina to Florida and Mississippi. 
ALABAMA: Littoral region. Damp sandy beach. Mobile County, West lowl 
River. Flowers greenish ‘yellow, Infrequent. A shrubby evergreen with sueculent 
leaves. P erennial. Shrubby at the base. 
Type locality: South Carolina, 
Herb. Geol, Surv, Herb. Mohr. 
