Id on several plants please

[irene]

I have a bunch of stuff I would like help to id.  The green aponogetun is the one that's sent up flower stalks, the reddish coloured one has not flowered but sends up plantlets like crazy.  The short spiky stuff I just got at Al's today.  The original cuttings of ludwigia were growing locally if that helps any. 

Thanks!

Irene

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[Aquaviewer]

Your photo called "grassy" in chain sword (Echinodorus tenellus)