NETTLE FAMILY. AT7 
Economic uses: Here and there cultivated for its strobules used in making yeast 
and for medicinal purposes. ‘‘Humulus,” United States Pharmacopoeia. 
Type locality: ‘‘Hab. in Europae sepibus et ad radices montium.” 
Herb. Geol. Surv. Herb. Mohr. 
URTICACEAE. Nettle Family. 
URTICA L. Sp. Pl. 2: 983. 1753. NETTLE. 
From 30 to 40 species, mostly in colder and cooler temperate regions. America 
about 30 species, North America 10, Eastern States 2, exclusive of naturalized species. 
Herbs. 
Urtica gracilis Ait. Hort. Kew. 3: 341. 1789. COMMON AMERICAN NETTLE, 
Urtica procera Willd, Sp. PL. 4: 353. 1805. 
El. 8k.2:571. Gray, Man.ed. 6, 465, Chap. F1.412. Coulter, Contr. Nat. Herb. 
2: 408. 
Hudsonian zone to Lonisianian aren. Nova Scotia, New Brunswick, and Ontario, 
north to Mackenzie River, west to the base of the Rocky Mountains, New England 
west to Minnesota and Nebraska, south to Florida, Texas, and Arkansas. 
ALABAMA: Over the State to the coast. Border of swamps, waste places. Mobile 
County. 
July, August; common. Perennial. 
Type locality: ‘‘Native of Hudson’s Bay.” 
Herb. Geol. Surv. Herb. Mohr. 
Urtica dioica L. Sp. P].2:984. 1753. LARGE STINGING NETTLE. 
Ell. Sk. 2:571. Gray, Man. ed. 6, 465. Chap. Fl. 412. Coulter, Contr. Nat. Herb. 
2: 408. 
Introduced from Europe; naturalized throughout the continent from Canada to 
Mexico, 
ALABAMA! Over the State. Waste places. Lawrence County, Moulton. Mobile 
County, ballast ground. July, August; not frequent, Perennial. 
Type locality: “ Hab. in Europae ruderatis.” 
Herb. Geol. Surv. Herb. Mohr. 
Urtica urens L. Sp. Pl. 2:984. 1753. SMALLER STINGING NETTLE, 
EIL Sk. 2:570. Gray, Man. ed. 6, 465. Chap. Fl. 412, Coulter, Contr, Nat. Herb. 
2: 408. 
Adventive from Europe, naturalized from Canada to Mexico, 
ALABAMA: Antauga County, Prattville (£2. 4. Smith). Mobile County, ballast 
heaps. July, August; rare. Annual. 
Type locality: “Hab. in Europae cultis.” 
Herb. Geol. Surv. Herb. Mohr. 
Urtica chamaedroides Pursh, Fl. Am. Sept.1:113, 1814. PURPLISH NETTLE, 
Urtica purpurascens Nutt. Trans. Am. Phil. Soc. n. ser. 5: 169. 1837. 
Ell. Sk. 2:570. Gray, Man. ed. 6, 465. Chap. Fl. 412. Coulter, Contr, Nat. Herb. 
2: 408, 
MEXICO. 
Carolinian and Louisianian areas. Kentucky to the Gulf States. 
ALABAMA: Central Pine belt. Tuscaloosa County (£. A. Smith); rare. Annual. 
Type locality: ‘On the islands of Georgia: 5t. Simons, &c.” 
Herb. Geol. Sury. Herb. Mohr. 
URTICASTRUM Fabr. Enum. 204. 1759, 
(LAPORTEA Gaud. Bot. Voy. Freyc. 498. 1826. ) 
About 2 species, in tropical Asia, Africa, Australia, Mexico. Temperate North 
America, 1. 
Urticastrum divaricatum (L.) Kuntze, Rev. Gen. Pl. 2: 635. 1891. Woop NETTLE,. 
Urtica divaricata and U, canadensis L. Sp. Pl. 2:985. 1753. 
Laportea canadensis Gand. Bot. Voy, Freye. 498. 1826. 
El. Sk. 2:573. Gray, Man. ed. 6,465. Chap. Fl. 413. 
Alleghenian and Louisianian areas. New Brunswick, Nova Scotia, Quebec, and 
Ontario to Saskatchewan Valley; New England throughout the Eastern States to 
Florida, west to Louisiana. 
