Description
Submersed leaves often modified into phyllodes, 10 - 45 cm long x 0.5 - 4 cm wide, linear to narrowly elliptical, of very variable shape and size, light-green, membraneously transparent, network between the veins often lighter or darker, thus the submersed leaves often appearing mosaic-like coloured. Emerse leaves long-petioled, 5 - 55 cm long, blades light-green, cordate, 5 - 12 cm long x 3 - 5 cm wide, in terrestrial dwarf forms the blades are ovate, truncate at the base, 2 - 5 cm long x 1 - 2 cm wide. In the blades there are very clear pellucid lines 1 - 5 mm (exceptionally up to 11 mm) long.
Stem upright, inflorescence compound, branched in lower whorls. In terrestrial forms stem only 6 - 10 cm long. Corolla white, about 1.5 cm in diameter, stamens 12, achenes numerous in echinate head, nutlets grey-brown, 2.5 - 3.5 mm long x 1 - 1.3 mm wide, broadly keeled, with 2 winged ribs alternating with 3 non-winged ribs; facial gland single, close to the beak, indistinct or quite absent.
Mature specimens may have between 10 - 30 leaves. most of them differing in shape and size.
Read more about this topic: Echinodorus Berteroi
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