Irish wildflowers BSBI map

Lesser Trefoil, Trifolium dubium, Seamróg
Photographs: Co. Cork

Lesser Trefoil
Trifolium dubium
Seamróg
Family: Fabaceae

Flowering time: May-August. Annual. Native.

Globular heads of small, pale yellow flowers, 10-15 in each head and brown when fruiting. Leaves have three triangular-oval leaflets with very small teeth and a stalked central leaflet. Stem and leaves purple-tinged as plant ages. A nearly hairless plant, semi-erect or prostrate, to 40cm. Worn as Shamrock on St Patrick's Day.

Abundant throughout on dry roadsides, fields, waste ground and dunes.

Similar: Slender Trefoil, Trifolium micranthum

Lesser Trefoil, Trifolium dubium, Seamróg

Lesser Trefoil, Trifolium dubium, Seamróg
Lesser Trefoil, Trifolium dubium, Seamróg

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