Photographs: Crookhaven, Co. Cork

Yellow Pimpernel Lysimachia nemorum Lus Cholm Cille Family: Primulaceae Flowering time: May-August. Perennial. Native. The solitary yellow flowers in the leaf axils are 5-petalled and stalked. A hairless plant rooting at the lower nodes with opposite oval, pointed and short-stalked leaves. Height: 10-40cm. Can be frequent in woods, fields and on roadsides. Similar: Creeping Jenny, Lysimachia nummularia grows on damper ground and has cup-shaped flowers and rounded leaves.

Yellow Pimpernel, Lysimachia nemorum, Lus cholm cille