Puzzling vetch

Puzzling vetch

Observation - Puzzling vetch. Description: In thick grass/bramble, difficult to identify the leaves. Flowers not single, which seems to rule out Grass Vetchling. Stem appears flattened/winged.

In thick grass/bramble, difficult to identify the leaves.
Flowers not single, which seems to rule out Grass Vetchling. Stem appears flattened/winged.