Authors: C. Stace, R. van der Meijden (ed.) & I. de Kort (ed.)
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Scientific name:

Hypericum nummularium

Vernacular name:

St John's-wort, Round-leaved


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Hypericum pulchrum - St John's-wort, Slender
Hypericum hirsutum - St John's-wort, Hairy

Round-leaved St John's-wort

Scientific name: Hypericum nummularium L.

Diagnostic features
Decumbent to erect glabrous perennial with thin stems to 30cm.
Leaves broadly elliptic to orbicular.
Flowers 18-30mm across.
Petals bright yellow, red tinged.
Black glands on sepals and petals ± stalked, on leaves sessile.

Habitat
Introduced-naturalized.

Distribution
On limestone quarry rock-ledge in Northwest Yorks probably since c.1920; mountains of Southwest Europe.

This species is keyed out on Page 3877 in the Text Key.

Hypericum nummularium
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St John's-wort, Round-leaved
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