Intro: Rhizomatous, colonial perennial of shallow water in river and stream beds.

Stems: Stems mostly simple, smooth, often rooting at nodes.

Leaves: Leaves opposite and ascending, sessile or short petiolate, narrowly elliptic and tapering to a long wedge-like base, to 5 or more in. long, margins entire.

Inforescence:

Flowers: Flowers in dense, short spikes arising from upper leaf axils, in opposite pairs on the spike; white to pale violet-pink; bilaterally symmetric and tubular, but deeply cleft into 4-5 parts, the upper lip recurved and lower lip 3-lobed, marked with purple.

Fruits: Fruit a stalked, club-shaped capsule.

Comments:

Height: 1-3 ft.

plant sale text:

bloom table text:

description: Rhizomatous, colonial perennial of shallow water in river and stream beds.

stems: Stems mostly simple, smooth, often rooting at nodes.

leaves: Leaves opposite and ascending, sessile or short petiolate, narrowly elliptic and tapering to a long wedge-like base, to 5 or more in. long, margins entire.

inflorescence:

flowers: Flowers in dense, short spikes arising from upper leaf axils, in opposite pairs on the spike; white to pale violet-pink; bilaterally symmetric and tubular, but deeply cleft into 4-5 parts, the upper lip recurved and lower lip 3-lobed, marked with purple.

fruits: Fruit a stalked, club-shaped capsule.

comments:

cultural notes:

germination code:

native range: eastern North America