Herbs (with us), with opposite leaves, didynamous stamens, and corolla either irregularly 5-lobed or 2-lipped. Ovary in Verbena 4-celled (when ripe splitting into 4 nutlets) and in Phryma 1-celled, but in no case 4-Iobed, thus distinguishing the plants of this Order from those of the next.
1. Verbe'na. Flowers in spikes. Calyx tubular, 5-ribbed. Corolla tubular, salver-form, the border rather irregularly 5-cleft. Fruit splitting into 4 nutlets.
2. Phry'ma. Flowers in loose slender spikes, reflexed in fruit. Calyx cylindrical, 2-lipped, the upper lip of three slender teeth. Corolla 2-lipped. Ovary 1-celled and 1-seeded.
1. V. hastata, L. (Blue Vervain.) Stem 3-5 feet high. Leaves oblong-lanceolate, taper-pointed, serrate. Spikes of purple flowers dense, erect, corymbed, or panicled. - Low-meadows and fields.
2. V. urticifo'lia, L. (Nettle-leaved V.) Stem tall. Leaves oblong-ovate, acute, coarsely serrate. Spikes of small white flowers very slender, loosely panicled. - Fields and roadsides.
3. V. angustifo'lia, Michx. Stem low. Leaves narrowly lanceolate, tapering at the base, sessile, roughish, slightly toothed. Flowers purple, in a crowded spike. - Dry soil.
4. V. bracteo'sa, Michx. Stem spreading or procumbent, hairy. Leaves wedge-lanceolate, cut-pinnatifid or 3-cleft. Spikes single, thick, sessile, leafy-bracted, the bracts longer than the small purple flowers. - S. W. Ontario.
L. Lopseed P. Leptostach'ya, L. Corolla purplish or pale rose-coloured. Stem slender and branching, 1-2 feet high. Leaves ovate, coarsely-toothed. - "Woods and thickets.