Hygrophila corymbosa, Nomaphila stricta

Hygrophila corymbosa naturally grows as an emergent, but it can survive long periods fully submerged. It grows pretty large leaves, allowing a single stem to occupy a significant part of the tank. Left alone, it easily crosses the water surface and begins to assume its emersed form: the leaves are darker and harder, and the plant produces purple flowers that give out a pleasant scent.

Similar plants:

• Gardenia hydrophila, Kailarsenia hygrophila (Mok Luang, Candlestick plant)
• Hygrophila difformis (Water Wisteria)