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 102nd meridian . VERBENACEAE. Vol. III. 4. Verbena angustifolia ]\Iichx. Narrow-leaved Vervain. Fig, 3555. V. angustifolia Michx. Fl. Bor. Am. 2: 14. 1803. Perennial, roughish-puberulent or pubescent;stem slender, simple or branched, 4-sided above,i°-2° high. Leaves linear, spatulate or lanceo-late, obtuse or subacute at the apex, cuneate atthe base and tapering into short petioles, serrateor
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 102nd meridian . VERBENACEAE. Vol. III. 4. Verbena angustifolia ]\Iichx. Narrow-leaved Vervain. Fig, 3555. V. angustifolia Michx. Fl. Bor. Am. 2: 14. 1803. Perennial, roughish-puberulent or pubescent;stem slender, simple or branched, 4-sided above,i°-2° high. Leaves linear, spatulate or lanceo-late, obtuse or subacute at the apex, cuneate atthe base and tapering into short petioles, serrateor serrulate, veiny, ihs long. 2-^ wide;spikes mostly solitafy at the ends of the branches,usually peduncled, slender, dense, 2-5 long;fruits overlapping or the lower somewhat dis-tant, I2 high; bracts lanceolate, acuminate,equalling or shorter than the calyx; corolla pur-ple or blue, about 3 long, its limb about asbroad, the lobes obovate or oblong. In dry fields, Massachusetts to Florida, west toMinnesota, Kansas and Arkansas. Hybridizes withv. striata and V. bracteosa. June-Aug. 5. Verbena stricta \ent. Hoary orMullen-leaved \ervain. Fig. 3556. V. striata Vent. Descr. PI. Jard. Cels. pi. 53. rigens
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
