Comprehensive Description
provided by North American Flora
Sagittaria angustifolia Lindl. Bot. Reg. pi. 1141. 1828
Sagittaria lancifolia angustifolia Lindl.; Griseb. Cat. Pi. Cuba 218. 1866.
Plants wholly or partially emersed, 7-12 dm. tall ; leaves ascending or recurving, the blades leathery, linear or nearly so, sometimes very narrow, 1-4 dm. long, attenuate, as long as the petioles or shorter ; scapes as long as the leaves or longer, usually simple ; whorls of the inflorescence several ; pedicels of the pistillate flowers ascending, as long as those of the staminate ones or slightly shorter ; bracts lanceolate, sometimes broadly so, 0.5-1.5 cm. long, acute or acuminate ; sepals obtuse ; corollas 2-3 cm. broad ; filaments not dilated, pubescent; anthers as long as the filaments or shorter; fruit-heads 1-1.5 cm. in diameter ; achenes cuneate or obliquely obovate, 2-2.5 mm. long, abruptly narrowed into the minute beak, the dorsal wing usually crested.
Type locality : Essequibo, British Guiana.
Distribution : Georgia, Alabama, and Mississippi, and in tropical America.
- 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
