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1. Aponogeton Linnaeus f., Supplementum Plantarum. 32.; 214. 1782.
[Greek, from aquatic habitat]
Herbs with milky sap. Leaves sheathing at base; axillary scales present. Inflorescences branched [unbranched], projected above water. Flowers bilaterally symmetric, sessile; stamens 6--18--[50]; filaments distinct; anthers 2-locular; pistils 2--6[--9], sessile. Fruits: beak terminal [lateral], curved or straight. Seeds: endosperm absent; seed coat single or double. x = 8.
Species 47 (1 in the flora): North America; native, Africa; tropical regions, Eastern Hemisphere.
Lower Taxon
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