In summer, Pontederia cordata produces spikes of violet flowers along marshy shores.
ポンテデリア・コルダータは夏に湿地の岸で紫色の花の穂をつける。
the Latin binomial Pontederia cordata used to denote the aquatic species known as pickerelweed, which grows in shallow wetlands and produces erect spikes of violet flowers.
