Northeastern Asian Flora
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Sparganium angustifolium Michx.   (redirected from: Sparganium kawakamii H.Hara)
Family: Typhaceae
[Sparganium affine Schnizl., moreSparganium affine subsp. borderi (Focke) Graebn., Sparganium affine subsp. boreale (Laest. ex Beurl.) K.Richt., Sparganium affine subsp. vaginatum (Larss.) Nyman, Sparganium affine var. boreale (Laest. ex Beurl.) Nyman, Sparganium affine var. deminutum Neuman, Sparganium affine var. microcephalum Neuman, Sparganium borderi Focke, Sparganium boreale Laest. ex Beurl., Sparganium emersum var. angustifolium (Michx.) R.L.Taylor & MacBryde, Sparganium fluitans Franch., Sparganium kawakamii H.Hara, Sparganium minimum var. borderi (Focke) Nyman, Sparganium natans var. angustifolium (Michx.) Pursh, Sparganium simplex Huds., Sparganium simplex var. angustifolium (Michx.) Torr., Sparganium vaginatum Larss.]
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  • Japan Flora
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Japan Flora: Stems elongate, floating or aerial, 30-50 cm. long, the floating leaves mostly narrow, about 4 mm. wide, compressed, keeled beneath; spikes simple; pistillate heads 2-4, 7-10 mm. in diameter, the lower 1 or 2 with a supra-axillary peduncle; staminate heads commonly approximate; fruit short-pedicelled, about 4 mm. long, fusiform; stigma linear, about 1 mm. long.

Reported from Hokkaido (Mount Yubari). Kamchatka, Europe, and N. America.

Sparganium angustifolium
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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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