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Echinodorus horizontalis
''Echinodorus horizontalis'' is a species plants in the of Alismataceae. It is native to northern South America (Venezuela, Colombia, Guyana, Ecuador, Peru, northern Brazil).〔(Kew World Checklist of Selected Plant Families )〕
==Description==
Leaves 25 – 40 cm long, blades join the petiole at an obtuse angle so that they stand nearly horizontally, they are ovate or cordate, on the tip acuminate, the base truncate or shortly lobate, usually with 7 veins, 10 – 17 cm long x 5 – 8 cm wide. Stem recurved, proliferous, 25 – 60 cm long. Inflorescence racemose, having 2 – 4 whorls containing only 3 – 6 flowers each. Bracts shorter than pedicels. Pedicels 1 – 1.5 cm long, sepals ovate, membraneous, 4 – 6 mm long, having 18 – 24 ribs. During ripening the sepals enlarge and cover partly the aggregate fruit. Petals white, ovate, corolla 1.5 – 1.8 cm in diameter, stamens 26 – 30. Anthers oblong, 5 – 10 x shorter than filaments. Aggregate fruit globular, 0.7 – 0.9 cm in diameter, achenes 3 mm long x 1 mm wide, having 3 – 4 ribs and usually 6 glands in 2 rows. Young leaves are red and brown, older leaves green.〔Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. In: Organization for Flora Neotropica, ed., Flora Neotropica Monographs 64:29–31.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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