Of rather low growth, with smooth, dotted, narrow leaves very peppery to the taste. Flowers, in dense, nodding spikes, with numerous small bracts. The sheaths are fringed along their edges. Stamens, 6. Summer.

8 inches to 2 feet high. Wet grounds.

P. virginianum. - Corolla, none. Calyx, 4-parted, the divisions unequal. Stamens 5, styles 2. Flowers, in long, loose spikes, 1 3 from a single bract. Stem, smooth, 2 to 4 feet high.

Perennials. Found in thickets or moist woods,