Najas gracillima (A.Braun ex Engelm.) Magnus
Family: Hydrocharitaceae
slender water-nymph
[Najas indica var. gracillima (Willd.) Cham.]
Najas gracillima image
Paul Skawinski  
Etymology: Najas: from Greek Naias, a water nymph
Plants: submerged annual, monoecious aquatic; stems very long, many branches, 0.2-0.7mm thick, few branches; slight rootstock
Leaves: light green, very narrow, sharp toothed edges, 13-17 per side, opposite, clasping stem, wide-jagged lobe at base
Flowers: tiny, from leaf axis
Fruits: light brown, paper-thin walls, 20-45 rows of stretched pits
Habitat: wet; clear 3' or more deep water soft water
Conservation Status: Native