Anther tube up to 2.5 mm long, the apex of
the lower two anther cells each with a bristle 0.3-0.6 mm
long and a tuft of tiny hairs; leaf apex rarely appears
three-toothed
I.
fluviatilis
Anther tube up
to 1.3 mm long, the apex of the lower two anther cells each
with a minute bristle but lacking a tuft of hairs; leaf apex
usually appears three-toothed
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University of Tasmania
