Hypericum humifusum

Hypericum humifusum is a prostrate flowering plant in the St. John's wort family Hypericaceae commonly known as trailing St John's-wort.[1] It is found in Western Europe.

Hypericum humifusum

Hypericum humifusum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Hypericaceae
Genus: Hypericum
Section: Hypericum sect. Oligostema
Species:
H. humifusum
Binomial name
Hypericum humifusum

Description

Hypericum humifusum is a low-growing, hairless perennial. The thin trailing stems have two raised lines and bear opposite pairs of pale green elongated oval leaves, often with tiny translucent glands. The undersides of the leaves have tiny black dots on the edges. The flowers are about 1 cm (0.3 in) across and grow from the leaf axils. There are five sepals of unequal size and five yellow petals, often with a few black dots, and not much larger in size than the sepals. The stamens are united at the base into bundles. The fruits are dry.[2][3]

Habitat

Hypericum humifusum grows on heaths, dry banks, bare land at the edge of tracks and light woodland.[2] It is found in Western Europe [4] and throughout the British Isles where it flowers from May to September.[5]

References
  1. "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  2. McKlintock, D. and R. S. R. Fitter. The Pocket Guide to Wild Flowers. (1956) Collins, London. P29.
  3. Trailing St John's Wort West Highland Flora. Retrieved 2011-09-13.
  4. Hypericum humifusum Flora Europaea. Retrieved 2011-09-13.
  5. Trailing St John's Wort BSBI Maps Scheme. Retrieved 2011-09-13.
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