TKiFOLuiM. LEGUMINOS.E. 133 



appressed hoary pubescence throughout : leaflets 3-5, obovate to oblanceo- 

 late, coarsely serrate, 3-6 lines long : stipules mostly scarious and inflated : 

 peduncles snorter than the leaves ; flowers few, 3-4 lines long, on short 

 pedicels: teeth of the calyx linear, but little longer than the tube, a third 

 shorter than the petals :ovary densely villous, 2-ovuled. In open forests, 

 Blue Mountains of Oregon. 



§ 2. EuTEiFOLiT-.M. Heads not involucrate: peduncles termi- 

 nal or apparently so : flowers sessile or nearly so. 



* More or less pubescent: teeth of the calyx longer than the tube, 

 very narrow : stipules linear or lanceolate, acuminate. 



■•- Tieeth of the calyx plumose or hairy. 



■»<■ Flowers never reflexed. 



T. albopnrpurenin T. & G. Fl. i, SI'S. T. Macrsei of authors not H. & 

 A. Somewhat villous, witli appressed or spreading hairs: stems slender, 

 branching, 6-12 inches high : from an annual root: stipules ovate to lanceo- 

 late, long-acuminate: leaflets obovate to narrowly oblong, obtuse or re- 

 tuse, serrulate above the middle, 2-6 lines long: flowers in dense, ovate 

 slender-peduncled lieads, sessile, dark purple ; calyx very villous, the 

 straight filiform plumose teeth as long as the petals, somewhat spreading: 

 petals scarcely connected : ovary pubescent : jDpds 1 -seeded. On dry hill- 

 sides, western Washington to California. 



T. PBATENSE L. Hp. 1082. (Red Clovek). Perennial: stem:^ ascending, 

 somewhat hairy, 1-3 feet long: stipules broadly lanceolate, membrana- 

 ceous, nerved, setaceously acuTiinato: leaflets obcordate or oblong-ovate, 

 often emarginate, nearly entire, glabrous above, 1-2 inches long: heads of 

 flowers ovate, dense, nearly sessile, bracteate; teeth of the calyx setaceous, 

 hairy, the lower one much longer than the other four, which are equal 

 and about half 9,s long as the corolla ; petals purplish-red, all united into a 

 tube at the base. Roadsides and cultivated helds, common. 



T. longipes Nutt. T. & G. Fl.i, 314. Glabrous or nearly so: stems 

 ei'ect or ascending from spreading perennial roots, 6-20 inches high, stout : 

 stipules mostly narrow, entire 'ir Bparsely toothed, apiculate : leaves long- 

 petioled; leaflets lanceolate to ovate, entire or minutely denticulate, 1-2 

 inches long, acute or obtuse, apiculate, strongly veined: flowers white, in 

 dense ovate long-peduncled heads, sessile or nearly so ; tube of the calyx 

 sparingly villous, a line long, the setaceous teeth minutely plumose ; 5-7 

 lines long, nearly equalling the corolla : upper petal free, the others united 

 With the stamina! tube: ovary pubescent at the apex, shortly stipitate, 

 2-4-ovuled. In wet places and about springs, Brit. Columbia to California 

 and the Rocky Mountains. 



Yar. latifolinin Hook. Lond. Journ. Bot. vi, 209. Often low: leaflets 

 broad : flowers pedicillate, in loose heads. From the Rocky Mountains to 

 the Pacific. 



f* -»» Flowers at length reflexed. 



T. erioceplialnm Nutt. 1. c. 313. Villous with spreading hairs, stems 

 erect, 6-10 inches liigh or more, from a §tout perennial root : stipules linear 

 to lanceolate, entire or repand ; 12-18 lines long : leaflets oblong to lanceo- 

 late, 1-2 inches long, acutely and minutely serrulate: flowers in dense 

 fivate spikes, yellowish or white, 4-8 lines long; tube of the calyx very 

 short, its filiform plumose teeth abruptly narrowed from a broad base, 

 nearly equalling.the petals ; claws of the petals united to the staminal 

 tube ; ovary hairy, 2-4-ovuled. Common in open places, western Wash- 

 ington and Oregon to northern California. 



T. plnmosuiii Dnugl. Hook. Fl. i, 13), t. 49. fcilky-pubescent : stems 



