noun
: an erect perennial aquatic herb ( Lobelia dortmanna ) of Europe and No. America with submerged spongy leaves and an emersed raceme of blue flowers
noun
: an erect perennial aquatic herb ( Lobelia dortmanna ) of Europe and No. America with submerged spongy leaves and an emersed raceme of blue flowers
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012