American Water Plantain: Alisma subcordatum
|Weed Description: Aquatic perennial with erect or floating leaves. Found in shallow water, marsh areas, and pond and stream borders from Massachusetts to Minnesota and from Florida to Texas.|
|Leaves: Oval or elliptic, approximately 1 1/4 to 8 inches long, 1 1/4 to 6 inches wide, and sharply pointed at the leaf apex (acute). Leaves have petioles that are often longer than the leaf blade.|
|Flowers: Occur on flowering stems
(scapes) in panicles with whorled branches of flowers within each panicle. Flowering
stems (scapes) range from 4 inches to 21 inches in height and are spreading. Petals
are 1 to 2 mm long and pink in color.
Fruit: An achene approximately 1.5 to 2.5 mm long.
Identifying Characteristics: Aquatic plants that are found in shallow water and resemble the common plantain weeds often found in turfgrass and lawns.