604 368. Medicago. 63. LEGUMINOSiE. PI. ex. cat. 
VII. 368. MEDICAGO. Tournefort. Lucerne . 
Calyx nearly cylindrical, 5-cut; keel distant from the 
standard ; legumen many-seeded, falcate or spiral, twisted. 
— Leaves ternate ; flowers in heads or solitary, yellow, rarely 
blue. 
a. Legumen sickle shape , or curved circularly. 
1 . Medicago saliva. Cultivated lucerne. 
Peduncle racemous ; legumen smooth, slightly spirally 
twisted; stipules not in the least cut; leaflets oblong, toothed; 
stem upright, bald. 
Trifolimn Btirgundiacum, Ger. em. 1189. 
Medicago saliva, Lin. S. P. 1096. 
Burgundy trefoil. Horned clover. Lucerne. 
Fields and pastures, naturalized; also cultivated; peren.; 
June and July. 
Root woody; stem 2 feet high, much branched, bald ; 
leaves petioled ; leaflets serrated at the tip, hairy beneath ; 
flowers violet; legumen 2 or 3-whirled. — Herb affords good 
forage, and in rich ground may be cut several times in the 
summer. 
2. Medicago falcata. Sickle lucerne. 
Peduncle racemous ; legumen twisted, sickleshape, smooth; 
leaflets oblong, toothed at the tip ; stem prostrate at the 
base. 
Medica sylvestris, Raii Syn. 3331, 1. 
Trifolimn luteura siliqua cornuta, Ger. em. 1 191. 
Medica frutescens flavo flore Clusii, Park. 1114. 
Medicago falcata, Lin. S. P. 1096. 
Yellow horned trefoil. Butter jags. 
Edges of fields and old walls; perennial; July. 
Leaves slender ; flowers yellow, violet, or yellow and 
violet, or greenish; legumen 4- to 8- seeded. 
3. Medicago lupulina. Hop lucerne . 
Spike ovate ; legumens kidneyshape, 4-seeded, downy, 
streaked ; leaflets ovate, slightly toothed at the tip ; stem 
procumbent. 
Melilotus q. Trifolium luteum lupulinum, Raii Syn, 331, 1. 
Trifolium luteum lupulinum, Ger. em. 1186, 5. 
Trifolium inonlanum lupulinum, Park. 1105. 
Medicago lupulina, Lin. S. P. 
Black trefoil. Nonesuch. Hop trefoil. 
Fields and pastures, also cultivated ; biennial ; May to 
August. 
Stem prostrate, angular ; peduncles long ; flowers small ; 
legumen hairy, black. 
