Escaped cultivation, annual, branching, ground herb to 1.5 m tall, glandular sticky; stems green; edicels green & pale purplish; calyx dull dark green; corolla purple, palate of antherior lobe white; posterior lobes 4, antherior 1; throat whitish and speckled with violet or corolla entirely white; anther locules whitish; connectives purple, filaments whitish-purplish; leaf blades dark green above, pale light green underneath.