Graig Quarry
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Geology & landscape
Mining / Industrial: Quarry · Rock Type: Limestone
Description
Description This site is notified for its rare higher plant species interest. The remaining strip of semi-natural broadleaved woodland at the southern edge of the limestone working known as Graig Quarry supports purple gromwell Lithospermum purpureocaeruleum, a Red Data Book species in its only known locality in North Wales. This species has been known from the Denbigh area since the seventeenth century. At Graig Quarry it reaches its most northerly locality in Britain at the edge of its geographical range. Other localities for this species are a considerable distance away. It occurs in semi-natural broadleaved woodland characterised by an ash Fraxinus excelsior, sessile oak Quercus petraea and sycamore Acer pseudoplatanus canopy and an understorey including locally uncommon species such as spindle Euonymus europaeus, wild service tree Sorbus torminalis and spurge laurel Daphne laureola.
Species mentioned
Show the 6 species mentioned in the description, with red-list status| English name search for this in other sites |
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IUCN / Red List | Type | Family |
|---|---|---|---|---|
| purple gromwell | Lithospermum purpureocaeruleum | Not listed in GB list | herb | boraginaceae |
| spurge laurel | Daphne laureola | LC | shrub | thymelaeaceae |
| spindle tree | Euonymus europaeus | LC | shrub | celastraceae |
| sycamore | Acer pseudoplatanus | Not listed in GB list | tree | aceraceae |
| ash | Fraxinus excelsior | LC | tree | oleaceae |
| sessile or durmast oak | Quercus petraea | LC | tree | fagaceae |