Hypericum humifusum, L.

50. H. humifusum L. , Sp. Pl. 785 (1753).

Stems 3-30(-40) cm, decumbent or procumbent, branching and rooting at the base. Leaves 3-15(-20) mm, patent or ascending, usually with translucent dots, the upper oblong to lanceolate, the lower obovate to oblanceolate. Sepals ovate to lanceolate, unequal, entire or with sessile marginal glands or black-glandular-ciliate or -denticulate, usually with a few superficial black dots. Petals equalling or up to twice as long as the sepals, very rarely with superficial black dots. Capsule equalling or slightly exceeding the sepals. 2« = 16. Open habitats; usually calcifuge. W. & C. Europe, extending to S. Sweden, White Russia, S. Romania, N. Albania & C. Italy. Al Au Az Be Br Co Cz Da Ga Ge Hb He Ho Hs Hu It Ju Lu Po Rm Rs (?B, C, W,?K) Sa Su.

48, 49 and 50 form a group of closely related plants, each with a well-defined geographical area. Where the ranges overlap the species usually remain distinct, but intermediates between 49 and 50 have been recorded from N. Italy, and between 48 and 50 from S.W. England and the Channel Islands.