Sagittaria montevidensis Cham. & Schltdl. subsp. montevidensis

  • Authority

    Bogin, Clifford. 1955. Revision of the genus Sagittaria (Alismataceae). Mem. New York Bot. Gard. 9 (2): 179-233.

  • Family

    Alismataceae

  • Scientific Name

    Sagittaria montevidensis Cham. & Schltdl. subsp. montevidensis

  • Description

    Species Description - Perennial. Leaves typically emersed, sagittate with linear to ovate blades and somewhat divergent basal lobes, rarely submerged or floating, then the basal lobes absent. Scapes with 3-12 whorls of flowers, simple or branching at the lowest whorl. Bracts connate, the free ends elongate attenuate, to 2.5 cm long. Pistillate flowers rarely with a ring of functional stamens; sepals covering more than one-half of the receptacle at maturity; petals with a purple spot at base. Stamens numerous, the linear sparsely pubescent filaments 1.8-3.5 mm long. Mature pistillate heads 1.5-2.5 cm in diameter; achenes 2-3 x 1-1.5 mm, the resin duct present or obsolete.

  • Discussion

    Sagittaria pugioniformis var. montevidensis Kuntze, Rev. Gen. 3: 328. 1898.

    Sagittaria multinerva Larranaga, Escrit. Larr. 1: 1. 1922.

    Type collection: Sellow s.n., Rio Grande do Sul, Brazil (holotype, not seen, Berlin; photograph of holotype GH, US). At the time this species was described Uruguay was a part of the Brazilian province of Montevideo whose borders included Rio Grande do Sul, hence the specific epithet.

  • Distribution

    Warm-temperate South America, east of the Andes; sporadically northward in the tropics to coastal Ecuador; introduced or adventive elsewhere. Collections examined from Argentina, Bolivia, Brazil, Ecuador, Paraguay, Peru and Uruguay. Adventive but apparently not persisting along the coast of the southeastern United States. Cultivated in many botanical gardens throughout the world including Africa, Java, and the United States.

    United States of America North America| South America| Amazonas Ecuador South America| Argentina South America| Bolivia South America| Brazil South America| Amazonas Ecuador South America| Paraguay South America| Peru South America| Uruguay South America|