Yellow Pimpernel - Lysimachia nemorum

Low creeping hairless plant, leaves opposite, pale green, rounded to lanceolate, pointed. Flowers bright yellow, saucer shaped 10 to 15 mm solitary, long stalked with slender sepal teeth.

Lysimachia nummularium (Creeping Jenny)

Leaves acute/subacute at the apex, no glands

Photos of leaves as well as flowers. 

Damp shady places, woodland.

May to July.

Evergreen perennial.

Widespread throughout Britain.

Fairly frequent but quite localised in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 37 of the 617 tetrads.

In the current Checklist (Jeeves, 2011) it is listed as native; old woodland; occasionally but can be locally frequent