. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 354 FABACEAE. Vol. I. Trifolium agrarium L. Yellow or Hop- clover. Fig. 2474. Trifolium agrarium L, Sp. PI. 772, 1753. ?r. aureum Poll. Hist. PI. Palat. 2: 344. 1777. Glabrous or slightly pubescent, annual, ascending, branched, 6'-i8' high. Leaves petioled ; stipules linear- lanceolate, acuminate, 4"-?" long, adnate to the pe- tiole for about one
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 354 FABACEAE. Vol. I. Trifolium agrarium L. Yellow or Hop- clover. Fig. 2474. Trifolium agrarium L, Sp. PI. 772, 1753. ?r. aureum Poll. Hist. PI. Palat. 2: 344. 1777. Glabrous or slightly pubescent, annual, ascending, branched, 6'-i8' high. Leaves petioled ; stipules linear- lanceolate, acuminate, 4"-?" long, adnate to the pe- tiole for about one-half its length; leaflets all from the same point, sessile, obovate or oblong, finely den- ticulate, narrowed at the base, rounded, truncate or emarginate at the apex, 6"-g" long; peduncles axil- lary, ¥-2' long; head oblong, or oval, 6"-g" long, densely many-flowered; flowers yellow, 2"-3" long, at length reflexed; pedicels shorter than the calyx; standard slightly emarginate, exceeding the pod, con- spicuously striate, and brown, especially when dry. Along roadsides and in waste places. Nova Scotia to South Carolina, west to Ontario, western New York and Iowa. Naturalized from Europe. May-Sept. 2. Trifolium procumbens L. Low, or Smaller Hop-clover or Hop-trefoil. Fig. 2475. Trifolium procumbens L. Sp. PI. 772. 1753. Similar to the preceding species, but lower, more spread- ing and more pubescent. Leaflets obovate, cuneate at the base, rounded, truncate or emarginate at the apex, finely denticulate, 4"-7" long, the lateral ones nearly sessile, the terminal distinctly stalked; stipules ovate, adnate to the lower part of the petiole, about 2" long; peduncles 3"-i2" long; heads 20-40-flowered, globose or short-oval, 4"-6" in greatest diameter; flowers yellow, at length reflexed, about 2" long; standard dilated, not folded, exceeding the pod, striate and brown when dry. In fields and along roadsides, Nova Scot
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
