Aponogeton robinsonii is found in central and southern Vietnam as well as in Laos in slow-flowing rivers with very soft water, on muddy as well as on rocky substrate. It was first imported as aquarium plant in 1981 by Ingo Hertel, and is not a very common plant today.
This Aponogeton is very variable, and at least two varieties are in cultivation, too. The "standard" form of A. robinsonii mainly forms submersed leaves in the aquarium, which are band-shaped, transparent, olive to dark green and long-stalked. Another form presumably originating from Laos mainly forms floating leaves in the aquarium and thus is best suited for open tanks.
- To be continued -
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