Pontederia cordata var. lancifolia P. cordata P. cordata Guide to the littoral zone vascular flora of Carolina bay lakes (U. S. A.) Howell, Nathan Krings, Alexander Braham, Richard R Biodiversity Data Journal 2016 4 7964 7964 4LTWH (Muhl.) Torr. Liliopsida Pontederiaceae Pontederia CoL var. Plantae Pontederia cordata Commelinales 0 7964 Tracheophyta variety cordata lancifolia   Pontederia cordata var. lancifoliaTaxon concept: [< P. cordata- RAB; = GW; < P. cordata- FNA; = Weakley]  Distribution Lake Waccamaw: ♦  Notes Perennial herbs. Eulittoral zone (NLSS−LW). May−Oct.