Lemna valdiviana
Lemna valdiviana is a species of duckweed known by the common name Valdivia duckweed. It is native to much of the Americas. It is a minute flowering plant which grows in mats on the surface of calm bodies of freshwater. The individual plant is a flat, translucent, pale green oval body 2 to 4 millimeters long. There is a longitudinal vein visible under magnification and microscopy. The body produces a root which may exceed a centimeter in length, and a tiny, ephemeral flower which is often encapsulated in a membrane. The plant often grows in clusters of two to seven individuals. References External links Jepson Manual Treatment USDA Plants Profile Photo Identification Guide and Botanical Characteristics Flora of North America Photo gallery Lemnoideae Freshwater plants Flora of Chile Flora of Northern America