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Associations

provided by BioImages, the virtual fieldguide, UK
Foodplant / open feeder
nocturnal adult of Chrysolina varians grazes on live leaf of Hypericum pulchrum
Remarks: season: 6-10,3-

In Great Britain and/or Ireland:
Foodplant / sap sucker
nymph of Eysarcoris aeneus sucks sap of Hypericum pulchrum
Other: major host/prey

Foodplant / parasite
hypophyllous, caeomoid aecium of Melampsora hypericorum parasitises live leaf of Hypericum pulchrum
Remarks: season: 5-10

Foodplant / spot causer
mainly epiphyllous, brown pycnidium of Septoria coelomycetous anamorph of Septoria hyperici causes spots on fading leaf of Hypericum pulchrum
Remarks: season: 8-10

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Brief Summary

provided by Ecomare
Slender St. John's Wort is fairly rare in the Netherlands. And it is getting even scarcer. Because its most preferred habitats are disappearing, such as coppice woods and damp dunes, it is having a hard time surviving. Dunes used to be drained for drinking water, but new management policies whereby more water is being retained in the dunes may help this plant. It is found mostly in the Veluwe, South-Limburg. It was a big surprise when this plant was found on Texel in the 1970's. So far as anyone knows, it arrived here spontaneously.
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Hypericum pulchrum

provided by wikipedia EN

Hypericum pulchrum is a flowering plant in the family Hypericaceae, commonly known as slender St John's-wort.[1] It is native to Western Europe.

Description

Hypericum pulchrum is a dainty, rhizomatous perennial plant growing 9–18 in (23–46 cm) high. It has erect smooth stems without ridges or wings. It has a few opposite pairs of untoothed, heart-shaped leaves that half clasp the stem. They are dotted with transparent spots and often have inrolled margins. The terminal inflorescence has rich yellow flowers. Each of these has five small, broad, blunt sepals with black dots on the margins. The five petals are red beneath and have red and black dots on the margins. There are three styles and many stamens with orange anthers in three bundles. The fruit is a dehiscent capsule.[2][3]

Habitat

Hypericum pulchrum is a calcifuge, found in heathy places, dry moorlands, among rocks in upland regions and on road verges on non-calcareous soils.[4][3][5]

Distribution

Hypericum pulchrum is found growing in Austria, Belgium, Britain, Czech Republic, Slovakia, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Norway, Poland, Portugal, Spain, Sweden and Switzerland.[6] It is found in suitable habitats throughout the United Kingdom.[5] It has been introduced to New Zealand where it has spread across the South Island and the southern part of the North Island.[7]

References

  1. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  2. ^ McKlintock, D. and R. S. R. Fitter. The Pocket Guide to Wild Flowers. (1956) Collins, London. P28.
  3. ^ a b Slender St John's Wort West Highland Flora. Retrieved 2011-09-14.
  4. ^ "Online Atlas of the British and Irish Flora: Hypericum pulchrum". Botanical Society of Britain and Ireland. Retrieved 14 May 2018.
  5. ^ a b Hypericum pulchrum: Slender St. John's-wort British wild flowers. Retrieved 2011-09-14.
  6. ^ Hypericum pulchrum Flora Europaea. Retrieved 2009-09-15.
  7. ^ Hypericum pulchrum L. Flora of New Zealand. Retrieved 2011-09-14.
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Hypericum pulchrum: Brief Summary

provided by wikipedia EN

Hypericum pulchrum is a flowering plant in the family Hypericaceae, commonly known as slender St John's-wort. It is native to Western Europe.

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