Internet photo. Photographer unknown

Brazilian Vervain is an upright, highly branched perennial with angled stems. Its preferred habitat is roadsides, waste places, and disturbed area. distribution is throughout the Escambia region.

The leaves are opposite on the stem, simple in form, sessile (no leaf stalk, and not clasping), lance-like, acute (tapering to the tip), with margins toothed and wedge-shaped base.

The flowers are terminal spikes. Each flower is bisexual in nature and irregular in form. the calys is 5-lobed, the corolla is salverform, 5-lobed, bluish-purple in color, 4 stamens. Flowers occur in late spring and summer.

Fruit is schizocarp.

The species V. bonariensis has a few leaves that do clasp the stem.