Growth Habitat: Perennial, heights range from 4 inches to 4 feet.
Leaves: Opposite and basal, oval to linear, toothed or toothless, sometimes thick and firm.
Stems: Erect, branched, clustered.
Flowers: Finely glandular-hairy, 3-lobed lower lip and 2-lobed upper lip, many flowers in several whorls from upper leaf axils. Flowers range from pale reddish-purple to bluish-purple.
Roots: Branched, woody.
Reproduces: By seed and by rhizomes.
Habitat: Dry to moist open sites.