Hoary Vervain

This plant will grow to a little over 1 m (3.5 ft) in height. It has a central stem but on occasion will branch. Stems and leaves (especially the underside) are covered in white hairs. The oval to obovate leaves are up to 10 cm (4 in) long and 7.5 cm (3 in) across and serrated. The stems end in floral spikes bearing the pinkish to purplish/lavender flowers.