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[APD] Re:Potamogeton octanclrus
Well the name is spelt wrong. Looks like someone read a "d" as "cl". It is
probably P. octandrus. An older name is P. javanicus. It is a fairly common
species here in Australia (or at least in Brisbane). It develops small
narrow floating leaves. Grows like a weed when I've seen it in the wild and
did quite well when I put it in a tank too. Here's some botanical info
Potamogeton javanicus Haask.
A 'broad-leafed' species. Upper floating leaves narrow-elliptic, acute,
5 to 7 nerved, 1.5-3.5cm long x 0.5-1cm broad. Submerged leaves linear but
tapered above and below, much longer than the floating, usually <2mm( often
<1) or rarely to 3mm broad, several-nerved. Fruiting spikes dense, to 1.5cm
long. Fruiting carpels 2-2.5mm long, dorsally 3-keeled, the keels sometimes
not very pronounced, at times with a basal tubercule on the mid-keel;
carpels mostly prominently beaked. A rather distinctive species, with its
narrow elliptic floating leaves, and very long, slender, submerged foliage.
I was in my favourite pet store this afternoon and the manager gave me a
bunch of Potamogeton octanclrus (it happens when you are a very good
Kasselmann doesn't list this species, nor do any of my other aquatic plant
ID books. Is anyone familiar with it?
The growth habit is "grassy" and quite attractive.
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