A resource of downloadable photographic images of the flora of Zermatt, Switzerland by Hugh Knott - all photos also on Flickr

The Alpine Flora of Zermatt, Switzerland

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Polygonum arenastrum (Equal-leaved Knotgrass)

Polygonum arenastrum (Equal-leaved Knotgrass)

This identification is based on prostrate habit and equal-size leaves, which may not be enough to move it certainly out of P. aviculare agg. This still seems in any case to be a muddled taxon.

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