LEGUMINOS^. (pulse FAMILY.) 127 



-1- Calyx-teeth silky-plumose, longer than the whitish corolla : root annual. 



1. T. AKVENSE, L. (Rabbit-foot or Stone Clover.) Silky, branch- 

 ing (5'- 10' high); leaflets oblanceolate ; heads becoming very soft-silky and 

 grayish, oblong or cylindrical. — Old fields, &c. (Nat. from Eu.) 



t- 1- Calyx scarcely hairy except a bearded ring in the throat, shorter than the rose- 

 purple elongated-tubular corolla. {Short-lived perennials : flowers sweet-scented.) 



2. T. pratense, L. (Red C.) Stems ascending, somewhat hairy ; Zeq/Zeto 

 oval or obovate, often notched at the end and marked on the upper side with a 

 pale spot; stipules broad, bristle-pointed; heads ovate, sessile. — Fields and mead- 

 ows ; largely cultivated. (Adv. from Eu. ) 



3. T, MEDIUM, L. (Zigzag C.) Stems zigzag, smoothish ; leaflets oblong, 

 entire, and spotless ; heads mostly stalked; flowers deeper purple, otherwise too 

 like the last. — Dry hills, E. Massachusetts. (Adv. from Eu.) 



» * Flowers pedicetled in umbel-wee round heads on a naked peduncle, their short pedi- 

 cels reflexed when old : corolla white or rose-color, withering-persistent and turrt- 

 ing brownish in Jading ; the tubular portion short, 

 4r T. refl^xum, L. (Boffalo C.) Annual or biennial ; stems ascenrfinp, 

 downy ; leaflets obovate-oblong, finely toothed ; stipules thin, ovate ; calyx-teeth 

 hairy ; pods 3 - 5-seeded. — Western New York (rare) to Illinois and south- 

 ward. — Heads and flowers larger than in No. 2 ; standard rose-red ; wings and 

 keel whitish. 



5. T. stoloniferum, Muhl. (Rttnnino Buffalo-C.) Smooth, peren- 

 nial; stems with long runners from the base; leaflets broadly Mvate or obcordate, 

 minutely toothed ; heads loose ; pods 2-seeded. — Open woodlands and prairies, 

 Ohio to Illinois, Kentucky, and westward. — Flowers white, tinged with purple. 

 Probably a variety of the last. 



6. T. rdpens, L. (White C.) Smooth, perennial; the slender stems 

 spreading and creeping ; leaflets inversely heart-shaped or merely notched, obscurely 

 toothed ; stipules scale-like, narrow ; petioles and especially the peduncles very 

 long ; heads small and loose ; calyx much shorter than the white corolla ; pods 

 about 4-seeded. — Fields and copses, everywhere. Here probably introduced, 

 but Indigenous northward. 



7. T. Carolini^num, Michx. (Carolina C.) Somewhat pubescent 

 small perennial, procumbent, in tufts ; leaflets wedge-obovate and slightly notched ; 

 stipules ovate, foliaceous ; heads small on slender peduncles ; calyx-teeth lance- 

 olate nearly equalling the purplish corolla ; standard pointed ; pods 4-seeded. — 

 Nat. from Southern States in waste grounds below Philadelphia ( C. E. Smith) ; 

 probably wild in S. Virginia.' May. 



• • * Flowers short-pediceUed in dose heads, reflexed when old : corolla yellow, per- 

 sistent, turning dry and chestnut-brown with age, the standard becoming hood- 

 shaped : annuals, fl. in summer, 

 7. T. agrXrium, L. (Yello-w or Hop-C.) Smoothish, somewhat up- 

 right (6'- 12' high) ; leaflets obovate-oblong, all three from the same point (palmate) 

 and nearly sessile ; stipules narrow, cohering with the petiole for more than half its 

 length,— Sandy fields, Massachusetts to Virginia. (Nat. from Eu.) 



