FIELD ID CHARACTERISTICS:
Stems 4-sided; clusters of axillary flowers are distinctive.
Description: Small to medium perennial herb, less than 1 m in height.
Leaves: Opposite, toothed, dark green, lance-shaped leaves, sometimes with purple coloration.
Flowers/Fruit: Small, white, tubular flowers form distinctive spherical clusters or whorls at the base of the leaves. Blooms from July to frost; fruits soon after flowering.
Habit and Range: Wet meadows, swamps, streambanks, perimeters of ponds statewide.