Definitions for lobelia dortmanna
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water lobelia, Lobelia dortmanna(noun)
erect perennial aquatic herb of Europe and North America having submerged spongy leaves and pendulous racemes of blue flowers above the water
Description Lobelia dortmanna is an aquatic stoloniferous herbaceous perennial aquatic plant with basal rosettes, and flower stalks growing to 70–200 cm tall. The 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 linear to oblong, 2.5–7.5 cm long and evergreen. They have no functional stomata. It is one of several unrelated species of plants from low nutrient lakes known as isoetids, owing to their superficial similarity to Isoetes. The plant has the unusual ability of removing carbon dioxide from the rooting zone rather than from the atmosphere. It also has CAM photosynthesis, which is more typical of desert plants. Distribution L. dortmanna is native to cool temperate regions of northern Europe and northern North America. Ecology It typically occurs in shallow water on sandy, peaty or rocky lakeshores, in pools, and in some kinds of wetlands. It is rarely found in rivers. Low water periods may leave it temporarily emersed, although it is sensitive to prolonged emersion and is one of the first species to be lost when water levels in lakes are artificially managed.
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"lobelia dortmanna." Definitions.net. STANDS4 LLC, 2015. Web. 25 Nov. 2015. <http://www.definitions.net/definition/lobelia dortmanna>.