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FNA | Family List | FNA Vol. 22 | Najadaceae | Najas

3a. Najas guadalupensis subsp. guadalupensis

Stems 11--75 cm ´ 0.1--0.8 mm. Leaves 0.3--2.8 mm; sheath 1--1.9 mm wide, apex rounded; blade 0.2--1.8 mm wide, teeth 50--100 per side, invisible to unaided eye, apex acute to mucronate. Flowers 1--3 per axil. Staminate flowers 1.5--2.5 mm; anther 4-loculed. Pistillate flowers 1.5--2 mm. Seeds 1.2--2.5 ´ 0.4--0.6 mm; aeroleareoles of testa in 20 longitudinal rows. 2n = 24.

Flowering early summer--fall. Lakes, rivers, and canals; 0--1500 m; Alta., Ont. Que.; Ala., Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., Nev., N.H., N.J., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis.; Mexico; West Indies; Central America; South America.


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