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FOC | Family List | FOC Vol. 23 | Alismataceae | Sagittaria

2. Sagittaria natans Pallas, Reise Russ. Reich. 3: 757. 1776.

浮叶慈姑 fu ye ci gu

Plants stoloniferous. Floating leaves linear, lanceolate, elliptic, or sagittate, 5-17 cm, base cuneate to rounded or cordate with 2 short lobes, lateral lobes shorter than middle lobe; submerged leaves lanceolate or reduced to phyllodes. Inflorescences racemose, 5-25 cm, in 2-6 whorls of 3 flowers, at least lower bracts free. Flowers unisexual; female flowers on lower 1 or 2 whorls, pedicels 5-12 mm; male flowers with pedicels 1-2 cm. Sepals usually not reflexed, broadly ovate, 3-4 × ca. 3 mm. Petals obovate, 8-10 × ca. 5.5 mm. Stamens numerous; anthers yellow. Achenes obliquely obovoid, 2-3 × 1-2.5 mm, with a short, subadaxial beak. Fl. and fr. Jun-Sep. 2n = 22*.

Ponds, channels. Heilongjiang, Jilin, Liaoning, Nei Mongol, Xinjiang [Japan, Kazakhstan, Korea, Mongolia, Russia; Europe].


 

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