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Published In: Flore des Environs de Spa 1: 175. 1811. (Fl. Spa) Name publication detail

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Flower/Fruit: Fl. Per.: July-August.
Type: Type: Described from Belgium, Hocquart.
Distribution: Distribution: West Pakistan, temperate Asia, north Africa, Europe and North America.
Comment/Acknowledgements: It sometimes approaches Alisma lanceolatum and Alisma plantago-aquatica in leaf shape but can be distinguished on key characters.
Map Location: This species is reported from Shalozan, Kurram (fide Dandy in Rech. f., l.c.).


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Glabrous herb. Leaves submerged or emerged, linear or linear-lanceolate to oblong-elliptic, attenuate at the base, obtuse; petiole short or absent. Panicle similar to that of Alisma lanceolatum, with somewhat recurved branches and pedicels. Flowers white to purplish-white, c. 8 mm across; pedicel thickened, up to 5 cm long; bracts lanceolate-ovate. Sepals ovate, 1.5-2.5 mm long, acute. Petals obovate, 2.5-3.5 mm long, 2-3.5 mm broad, obtuse. Stamens shorter than the ovaries; anthers somewhat orbicular or isodiametric. Ovaries subovate, c. 1 mm long; styles recurved, shorter than ovaries, papillate in the upper 1/4-1/2 part. Achenes somewhat obovate, c. 2.5 mm long, 3 ridged on the back.
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