Family: Fumariaceae Yellow Corydalis Pseudofumaria lutea (Corydalis lutea) Flowering time: May-August. Perennial. Neophyte Widely naturalised and can be very common in England and Wales on walls, waste ground and in pavement cracks. The bright yellow flowers are 12-18mm long. A strong-growing plant, the leaves and stems without tendrils. Similar: Climbing Corydalis, Ceratocapnos claviculata. Creamy flowers, leaves with tendrils.

Yellow Corydalis, Pseudofumaria lutea
Westbourne, Dorset. June 2012