Hypericum perforatum, SE: Äkta johannesört, johannesört, randpirk, äkta mannablod,
DE: Echtes Johanniskraut, NL: Sint-janskruid, UK: Perforate St John's-wort

Scientific name:  Hypericum perforatum L.
Swedish name:  Äkta johannesört, johannesört, randpirk, äkta mannablod
German name:  Echtes Johanniskraut,
Nederlandse naam:  Sint-janskruid
English name:  Perforate St John's-wort
Plant Family:  Clusiaceae/Guttiferae, St. John's Wort Family, Johannesörtsväxter

Sweden wild flowers, Vilda blommor i Sverige
Location: Hammarstrand

Life form:   Perennial herb
Stems:  Erect, Stems erect, up to 5.3 mm diam., terete, two raised lines down the stem
Leaves:  Opposite, elongate-elliptical, sessile to the stem, tapering toward the tip, and with translucent dots
Flowers:  yellow,5 petals, petals with black dots around the margin and flower with 3 styles. Flowers numerous and clustered near the apex of the plant.
Flowering Period:  July-September
Fruits:  Capsule, 4.5–8.5 mm long, 2.8–4.0 mm wide, ovoid, brown or light brown, vesicular glands prominent on surface
Habitat:  Woods, thickets, coast, pastureland, meadows, farmland and settlements

Sweden, Nature, Flowers, Botany
Location: Hammarstrand

Derivation of the botanical name:
Hypericum, hyper, "above," and eikon, "picture," from old practice of placing flowers above an image in the house to ward off evil spirits at the midsummer festival of Walpurgisnacht, which later became feast of St. John.
perforatum, perforat, "to bore through, pierce, perforate". Perforated, with the paired leaves joined at the base and thus 'perforated' by the stem.
  • The standard author abbreviation L. is used to indicate Carl Linnaeus (1707 – 1778), a Swedish botanist, physician, and zoologist, the father of modern taxonomy.

Flowers of Sweden - flowersinsweden.com
Location: Hammarstrand