Najas minor All.

• Authority

  Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

• Family

  Hydrocharitaceae

• Scientific Name

  Najas minor All.

• Description

  Species Description - Monoecious; dark green; stems 1–2 dm, 0.2–1 mm thick; lvs 0.5–3.5 cm × 0.1–0.2 mm, becoming recurved in age, serrulate with 7–15 multicellular teeth on each side, the base abruptly expanded and minutely fringe-toothed across the subtruncate summit, the teeth extending part-way down the sides of the expanded base; anthers monothecal and with a single microsporangium; seeds 1.5–3 mm, purplish, rather slender and somewhat curved distally, pitted, the areolae quadrangular, ca 0.03 mm high and 0.1 mm wide, in ca 12–18 ladder-like longitudinal rows; 2n=12. Ponds, lakes, and slow-moving streams, often in eutrophic or alkaline waters; native of the Old World, intr. in the U.S. from N.Y. and w. Mass. to Ga. and w. Fla., w. to Ill. and Ark.

• Common Names

  eutrophic water-nymph