PAPILIONACEAE. 



[Vol.. II. 



10. Trifolium reflexum I,. Buffalo Clover. 

 (Fig. 2079.) 



Trifolium reflexum L. Sp. PI. 766. 1753. 



Annual or biennial, pubescent, ascending, branching, 

 io / -2o / high. Leaves long-petioled; stipules ovate-lan- 

 ceolate, acuminate, foliaceous, few-toothed or entire, 8"- 

 12" long; leaflets all from the same point, short-stalked, 

 oval or obovate, cuneate at the base, obtuse or emargi- 

 nate at the apex, denticulate, 5 // -i2 // long; heads pedun- 

 cled, dense, globose, i' in diameter or more; flowers 5"- 

 6" long, all on slender pedicels, at length 3 // -4 // long 

 and reflexed; standard red; wings and keel nearly white; 

 calyx-teeth linear, shorter than the corolla, finely pubes- 

 cent; pods 3-6-seeded. 



In meadows, southern Ontario, western New York and 

 Pennsylvania to Iowa and Nebraska, south to Florida and 

 Texas. April-Aug. 



ii. Trifolium stoloniferum MuhL Running 

 Buffalo Clover. (Fig. 2080.) 



Trifolium stoloniferum Muhl. Cat. 70. 1813. 



Perennial, glabrous, branching.S'-ia' long.fortning run- 

 ners at the base. Leaves, especially the lower, long-peti- 

 oled; stipules ovate-lanceolate, acute, membranous, often 

 I' long; leaflets all from the same point, short-stalked, ob- 

 ovate or obcordate, broadly cuneate at the base, denticu- 

 late, <)"-i$" long; heads terminal, peduncled, nearly i' 

 in diameter; flowers white, purplish -tinged, 4 // -6" long; 

 pedicels slender, 3 // -4 // long, at length reflexed; calyx- 

 teeth subulate, longer than the tube; pod commonly 

 2-seeded. 



Prairies and dry woods, Ohio to Nebraska, south to Ken- 

 tucky and Missouri. May-Aug. 



12. Trifolium hy-bridum L,. Alsike 

 or Alsatian Clover. (Fig. 2081.) 



Trifolium hybridum L. Sp. PI. 766. 1753. 



Perennial, erect or ascending, sometimes 

 rather stout and succulent, i-2 high, branch- 

 ing, glabrous or very nearly so. Leaves long- 

 petioled; stipules ovate-lanceolate, acuminate, 

 membranous, 6 // -i2 // long; leaflets all from 

 the same point, short-stalked, obovate, some- 

 times emarginate but not obcordate, narrowed 

 or cuneate at the base, serrulate with sharp- 

 pointed teeth, 6"-i2" long; heads globose, 

 long-peduncled; flowers pink, or nearly white, 

 3"-4" long; pedicels slender, i // -2 // long, re- 

 flexed when old; corolla 3-4-times as long as 

 the calyx; calyx- teeth subulate, about equal- 

 ling the tube; pod 2-4-seeded. 



In meadows and waste places, Nova Scotia to 

 Idaho, south to New Jersey and Georgia. Called 

 also Swedish Clover. Sometimes cultivated for 

 fodder. May-Oct. 



