Verbena urticifolia var. urticifolia
Family: Verbenaceae
nettle-leaved vervain, white vervain
Verbena urticifolia var. urticifolia image
David G. Smith  
Etymology: Verbena: ancient Latin name of the common European vervain
Plants: erect, annual/perennial, 16"-40" tall forb, usually branching near the base; stems 4 -angled
Leaves: opposite, widely lance-like to oval, stalked, once to twice toothed leaf drawing
Flowers: white, 5-parted, 1/8" wide or less; inflorescence very loosely-spreading, branched, slender spikes; blooms July-Oct.
Fruits: 4 separating, rough, 1/5" nutlets
Habitat: disturbed sites, woods, thickets
Conservation Status: Native