Northeastern Asian Flora
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Vallisneria natans (Lour.) H.Hara   (redirected from: Vallisneria gigantea var. higoensis (Miki) Kitam.)
Family: Hydrocharitaceae
[Gastrodia mairei Schltr., moreGastrodia viridis Makino, Physkium natans Lour., Vallisneria americana var. biwaensis (Miki) Lowden, Vallisneria asiatica Miki, Vallisneria asiatica var. biwaensis Miki, Vallisneria asiatica var. higoensis Miki, Vallisneria biwaensis (Miki) Ohwi, Vallisneria gigantea Graebn., Vallisneria gigantea var. biwaensis (Miki) Kitam., Vallisneria gigantea var. higoensis (Miki) Kitam., Vallisneria higoensis (Miki) Ohwi, Vallisneria minor Ito, Vallisneria natans var. biwaensis (Miki) H.Hara, Vallisneria natans var. higoensis (Miki) H.Hara, Vallisneria physcium Juss. ex Spreng., Vallisneria spiralis L., Vallisneria spiralis var. subulispatha Makino, Vallisneria spiraloides Roxb., Vallisneria subulispatha (Makino) Koidz.]
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  • Japan Flora
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Japan Flora: Perennial with smooth stolons; leaves elongate, linear, flattened, 5-13 mm. wide, 5- to 7-veined, loosely and obscurely serrulate or obtuse toward tip; pistillate flowers enveloped by a spathe about 2 cm. long; staminate peduncles 2-3 cm. long; fruit linear, smooth, 10-20 cm. long; seeds narrowly fusiform, 3 -3.5 mm. long. 0.8 mm wide Aug.-Oct. Ponds and shallow rivers. 

Hok­kaido, Honshu, Shikoku, Kyushu; common. China, Indo­china, Korea, and Formosa.

Vallisneria natans
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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