‘Cress’ in this instance means ‘cross’ and refers to the cross-shaped arrangement of the flower petals. I think the distinctive leaves look slightly cross-shaped as well. Wavy bitter-cress is slightly hairy, though not as much as hairy bitter-cress. It has tiny white flowers, which stand out in the dappled shade of docks and sedges at the foot of the ramp. It lives in stony, shady, damp ground. This was at the foot of our ramp, in the shade of grass.
At first, I thought this was a narrow-leaved bitter-cress, but not all the leaves are narrow. Also, the narrow-leaved bitter-cress doesn’t often have proper petals, just stamens, and isn’t at all hairy. Hairy bitter-cress flowers have only four stamens, whereas wavy bitter-cress has six.
