lobelia dortmanna

Lobelia dortmanna (Dortmann's cardinalflower or water lobelia) is a stoloniferous herbaceous perennial aquatic plant with basal leaf-rosettes and flower stalks growing to 70–200 cm tall. Flowers are 1–2 cm long, with a five-lobed white to pale pink or pale blue corolla, produced one to ten on an erect raceme held above the water surface. The fruit is a capsule 5–10 mm long and 3–5 mm wide, containing numerous small seeds.The leaves are almost cylindrical, blunt, 2.5–7.5 cm long and evergreen. They ...