Seasonal Wild Flowers

Fleshy Yellow-sorrel

Oxalis megalorrhiza

Wall Oxalis

Oxalidaceae

April to October

It grows in the Scilly Islands and West Cornwall.

For a map see the National Biodiversity Network Gateway

It is a neophyte, which was introduced into the Scillies from

South America.

It has been naturalised since the 1930s and grows extensively

on walls and banks, particularly on Tresco.

Fleshy Yellow-sorrel is a non-native, spreading and trailing, herb.

Flowers are bright yellow, up to 15mm across and 5-merous.

Leaflets form a trefoil and are dark green and fleshy.

Stems are erect to ascending, subterranean and aerial, up

to 20cm, thick and succulent.

Fleshy Yellow-sorrel can be invasive.

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Fleshy Yellow-sorrel on a wall, Tresco

Group of flowers and lichens

Close-up of flower

Fleshy trefoil leaves