There are four sub species of this astoundingly insignificant plant but this is probably ssp fontana but separating them is best done according to markings on the very small seeds under a low power microscope rather than in the field with a hand lens.

M. fontana is found throughout the British Isles and is very common in the west of England, all of Wales and most of Scotland. It is less common in the drier parts of eastern England and Scotland. In Ireland it is commonest in the north and south but not as common in the centre..

Edge of Llyn Coron, Anglesey 6th October 2005

Added on November 10th 2005, updated 4th January 2011