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Aponogeton undulatus

Vernon D. Matheson wrote:

>>I have what I believe to be two apon. undulatus in the process of flowering.
>>However both these plants are sending up second and third stalks which are
>>terminating in a large non apon looking leaf which is an olive greenish
>>color and lays flat on the water surface. These leaves are approx 4" -  6"
>>in length.
>>I have researched Karen Randall's article at the Krib on this and it
>>mentioned that this apon seldom flowers but will send out stocks which
>>produce adventitious plantlets. Are these large singular leaves the "

Paul Krombholz wrote:

>Those large singular leaves sound like floating leaves to me, and, if they
>are, your plant is not undulatus, which almost always produces small
>plantlets instead of flowers and almost never produces floating leaves.
>Perhaps you have A. echinatus, which produces underwater and, later,
>floating leaves.

Possible, but my guess would be that it is another of the many A. natans x
hybrids.  I actually once bought some plants as A. natans that then started
producing many adventitious plantlets on the flower stalks.  I'm pretty
sure these were the same cross.

Karen Randall
Aquatic Gardeners Association