Feb., 1915.] Clovers of Ohio. 447 



4. Trifolium incarnatum L. Crimson Clover. 



Annual; erect; branching; 12-20 in. high; leaves long petioled, 

 6 in. long, 2 in. wide; leaflets 1 in. long, 1 in. wide, sessile or nearly 

 so, all from the same point, obovate, cuneate at the base, rounded 

 at the apex; peduncles 1^4 in. long; flowers in oblong heads; 

 corolla crimson. In fields and waste places. From Europe. 

 Rather general. 



5. Trifolium arvense L. Rabbit-foot Clover. 



Annual; erect; branching above the root; leaves 1 in. long, 

 }4 in. wide; leaflets ii in- long, % in. wide, linear or oblanceolate, 

 cuneate at the base, rounded at the apex; heads oblong or cyhndri- 

 cal; calyx silky; corolla whitish. In fields and waste places. 

 Warren, Stark, Cuyahoga, Lake. From Europe. 



6. Trifolium pratense L. Red Clover. 



Perennial; branching, decumbent or erect; 2 ft. high; leaves 

 4>^ in. long, 2 in. wide; petiole pubescent; leaflets 1% in. long, 

 ^8 in. wide, with short petioles, all from the same point, ovate 

 or oblong, narrowed at the base, rounded at the apex, usually 

 with a prominent light ornamental spot in the middle; heads 

 somewhat ovoid; flowers red, calyx hairy. In waste places and 

 meadows. General and abundant. Naturalized from Europe. 



7. Trifolium medium L. Zig-zag Clover. 



Perennial; ascending; 14 in. high; leaves 6 in. long, 3 in. 

 wide; leaflets l}4 in. long, }4 in. wide, oblanceolate to ovate; 

 flowers nearly sessile, bright purple. 



8. Trifolium virginicum Small. Prostrate Mountain Clover. 

 Perennial; branched at the base, the branches prostrate, 



pubescent; leaflets ^-1>^ in. long, linear, narrowly lanceolate or 

 oblanceolate, obtuse, serrate, dentate; flowers in globose heads, 

 whitish, crowded. 



9. Trifolium carolinianum Mx. Carolina Clover. 



Perennial ; ascending or procumbent ; much branched from the 

 base; leaves % in. long, ]i in. wide; leaflets all from the same 

 point; obovate, cuneate at the base, denticulate; flowers purplish. 



10. Trifolium reflexum L. Buffalo Clover. 



Annual or biennial; ascending; branching, 15 in. high; leaves 

 1^ in. long, % in. wide; leaflets % in. long, }4 in. wide, oval 

 or obovate, cuneate, denticulate; flowers red with peduncles 

 l-3>^ in. long. In meadows and ravines. Belmont County. 

 10. Trifolium stoloniferum Muhl. Running Buffalo Clover. 



Perennial; branching, foiTning runners at the base; stem 15 in. 

 long; leaves 6^ in. long, 2 in. wide; leaflets \H in. long, 1>^ in. 

 wide, broadly obovate; flowers white tinged with purple; pods 

 2-sceded. Prairies and dry woods. Hamilton, Clermont, Butler, 

 Clinton, Clark, Franklin. 



