SAGITÁRIA
Planta da família Alismataceae, da espécie Sagittaria montevidensis Cham. et Schlecht.
Nota 1 e 2: Ela infesta lavouras de arroz inundado, margem de lagos, canais de drenagem, baixadas úmidas e pântanos. Ela é invasora, perene, aquática emersa, herbácea, levemente rizomatosa, de 50-90 cm de altura. As folhas são sagitadas, glabras, medindo 10-15 cm de comprimento, com lobos lineares e quase divergentes. Os pecíolos são verticais de 50-70 cm de altura. As inflorescências são em racemos, sustentados por longo escalpo. As flores masculinas têm pedicelos filiformes e as femininas têm pedicelos grossos e curvos. Multiplica-se por sementes e rizomas.
A plant of the family Alismataceae, of the species Sagittaria montevidensis Cham. et Schlecht.
Note 1 and 2: It infests flooded rice crops, lake margins, drainage channels, humid lowlands and swamps. It is an invader, perennial, emerging aquatic, herbaceous, slightly rhizomatous, of 50-90 cm of height. Its leaves are arrow shaped, glabrous, measuring 10-15 cm of length with linear and almost divergent lobes. Its petioles are vertical of 50-70 cm of height. Its inflorescences are in racemes, sustained by a long scalp. Its male flowers have filiform pedicels and the female ones, thick and curved pedicels. Its multiplication is by seeds and rhizomes.