Wild Flowers seen in St Paul's Churchyard, the City of London (TQ3281)

Included:

Annual Meadow-Grass
Black Medick (see below)
Buck's-Horn Plantain viz.

Cock's-Foot

Common Field-Speedwell

Common Mouse-Ear viz.

Common Ragwort (unlikely to flower due to mowing regime)
Creeping Buttercup viz.

Daisy
Dandelion viz.

Greater Plantain
Groundsel

Hart's-Tongue Fern
Jersey Cudweed (see below)

Petty Spurge

Red Dead-Nettle
Sow-Thistle

Thyme-Leaved Speedwell viz.

Wall Speedwell
White Clover viz. 

and Yarrow (unlikely to flower due to mowing regime)

Jersey Cudweed and Black Medick viz.