Square-stalked St John's-wort - Hypericum tetrapterum

Short to tall erect hairless plant. Stems square, with four narrow wings, spreading and rooting at the base. Leaves opposite, rounded to oval with translucent dots. Flowers pale yellow, 9 to 10 mm, many in a spreading panicle.

Other St.John's-worts

See our St John's Wort ID Guide.

Petals pale yellow; small flowered; stems with 4 broad wings

A photo of the plant in its habitat

Damp places, marshes, pond and river margins.

June to September.

Perennial.

Fairly common throughout Britain.

Fairly common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 310 of the 617 tetrads.