| Plants : Hypericaceae | Ferns and Flowering Plants |
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| Hypericum calycinum |
Description: A south-eastern European species of St. John's wort, shrubby and evergreen with large, showy flowers typical of the group. Much planted in gardens and parks and now escaped into woodland and shrubberies in a few places.
All names: Hypericum calycinum L.
Distribution Map from NBN: Hypericum calycinum at National Biodiversity Network mapping facility, data for UK.
iNaturalist: Hypericum calycinum at iNaturalist World Species Observations database.
| Hackney, P., 2026. Hypericum calycinum. L.. [In] Flora of Northern Ireland. https://habitas.org/flora/species.php?item=2956. Accessed on 2026-11-02. |