Aquatic plants ›
A floating perennial that can grow 3 ft tall. Rarely produces seed; most reproduction is by stolons. Poses a serious economic threat to waterways in the southeastern U.S.
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Spreads rapidly in slow-moving waters. May overwinter in USDA hardiness zone 7b or warmer climates.
Waxy leaves are rounded and elevated by long, inflated, spongy petioles.
Showy (purple, with yellow spots) and borne upon a spike with 5 to 20 individual flowers.
Aquatic Plants App
Whether you're a professional botanist or a casual nature enthusiast, the NC State University (NCSU) Aquatic Weeds app has detailed information on a wide variety of aquatic weeds to assist in identification.