Slender St John's-wort
Scientific name: Hypericum pulchrum L.
Diagnostic features Erect glabrous perennial with thin stems to 60cm. Main stem-leaves triangular-ovate. Flowers 12-18mm across. Petals bright yellow, red-tinged on lowerside. Black glands on sepals and petals stalked.
Chromosome number: 2n=18.
Habitat Native; dry open woodland, hedgebanks and heathland, usually on acid soils.
Distribution Locally common throughout British Isles.
This species is keyed out on Page 3877 in the Text Key. |