Pontederia

Pontederia

Pontederia L.
Bot. syn.: Unisema Raf.

Pontederia cordata

Pontederia cordata L.
Engl.: pickerelweed.
Bot. syn.: Pontederia lanceolata Nutt., Unisema deltifolia Raf.

I have no articles for this botanical term, but there might be some for the next level down (if found).