Whutz dis plant

From Shaji:

> Here is what I have learned about this plant.
> It is probably some species of Ammania - either A. gracilis or A.
> senegalensis. 

> Conclusion : One of these two is probably A. senegalensis, the other
> is probably A. gracilis, but there is confusion about which is which.
> Thanks to everone who helped.

I've now seen both gracilis and senegalensis.  senegalensis is definitely
the larger, more Alternanthera-like of the two.  The gracilis that I have
looks more (in size and leaves) like Didiplis diandara, Rotala wallichi
and Heteranthera zosterfolia. 

Erik D. Olson                		E-mail-o-meter:
olson at phys_washington.edu             	it's back up!