ON THIS PLANT
Aponogeton bernerianus is an aquatic plant from eastern Madagascar. It has a 3 cm thick tuber or thick and branchy rhizome. Leaf blade up to 13 cm petiolate, strap-shaped, highly bullate and undulate, up to 50(-120) cm long and 1.5-6.5(-10) cm wide, dark green coloration. Peduncle up to 75 cm long, tapering towards the inflorescence. Spathe up to 15 mm long, caducous. Inflorescence with 3-15 up to 8-cm long spikes with omnilateral flowers; 2(3) white tepals; 6 stamens; 3(4) carpels with 2 ovules each. Fruit about 10 x 7 mm. Seed about 7x4 mm in size, simple testa.
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