Pennsylvania SmartWeed

These Plants form dense colonies in shallow waters or moist soil and can grow from 2 to 3 ft tall. Stems are jointed or have swollen leaf nodes that are surrounded by a tubular sheath. Leaves alternate,up to 4 inches long but usually less than 1/2 inch wide. Flowers are on spikes at the end of stems (often numerous spikes on the same plant). Flowers begin as greenish then turn whitish or light pink in color as they mature.