Comprehensive Description
provided by North American Flora
Potamogeton foliosus Raf. Med. Repos. II. 5 : 354. 1808
Polamogeton gramineus Michx. Fl. Bor. Am. 1 : 102. 1803. Not P. gramineus L. 1753.
? Potamogeton ex stipulation Muhl. Cat. 18. 1813.
Potamogeton paucifiorus Pursh, Fl. Am. Sept 121, 1814.
"Potamogeton niagarensis Tuckerm. Am. Jour. Sci. II. 7 : 354. 1849.
Potamogeton foliosus niagarensis A. Gray, Man. ed. 2. 435. 1856.
Potomogeton foliosus californicus Morong, Bot. Gaz. 10 : 254. 1885.
Potamogeton californicus Piper, Contr. U. S. Nat. Herb. 11 : 98, 1906.
Stems flattened, much branched, very rarely with propagating buds ; leaves all submerged, linear, 1.5-8 cm. long, 0.4-2 mm. wide, with an obtuse or more or less pungent apex, 3-5-nerved, the midrib prominent ; stipules axillary and free from the leaf -bases, obtuse or acute, 1.3-2.4 cm. long; spikes few-flowered, usually not more than 12 nutlets maturing ; peduncles usually 1-2 cm. long, as thick as or thicker than the stem ; nutlets pitted, 3-keeled, the middle keel winged and more or less dentate ; embryo an incomplete spiral, the apex pointing towards the base or outside it.
Type locality : Carolina.
Distribution: New Brunswick to British Columbia, south to Florida and Mexico; also in
- bibliographic citation
- Percy Wilson, Per Axel Rydberg, Norman Taylor, Nathaniel Lord Britton, John Kunkel Small, George Valentine Nash. 1909. PANDANALES-POALES; TYPHACEAE, SPARGANACEAE, ELODEACEAE, HYDROCHARITACEAE, ZANNICHELLIACEAE, ZOSTERACEAE, CYMODOCEACEAE, NAIADACEAE, LILAEACEAE, SCHEUCHZERIACEAE, ALISMACEAE, BUTOMACEAE, POACEAE (pars). North American flora. vol 17(1). New York Botanical Garden, New York, NY
