It would appear to be obvious that there are two species here ? But my attempts to investigate were inconclusive except to say I suspect there may be Lemna minuta there (the smaller fronds). This is introduced and "rapidly spreading".
It would appear to be obvious that there are two species here ? But my attempts to investigate were inconclusive except to say I suspect there may be Lemna minuta there (the smaller fronds). This is introduced and "rapidly spreading".