Flora of Wales
The flora of Wales is the assemblage of plant life in Wales.
Trees
The sessile oak, one of Wales' most common species, can be found across the region. English holly, one of the few native evergreen trees, can be found in southern Wales. The wych elm, a native species, suffers from disease and competition introduced by exotic species.Flowers
The cuckoo flower, a herbaceous perennial, can be found throughout Wales. Bog rosemary, a small flowering shrub, can be found in central Wales. Within the British Isles, the Snowdon lily is found only on the slopes of Snowdon.Important Plant Areas
Important Plant Areas in Wales are areas of "the highest botanical importance" as determined by Plantlife.| County / Historic county | Species | Habitat |
| Anglesey | Spotted rock-rose | Dry, rocky places |
| Brecknockshire | Cuckooflower | Wet grassland and pond margins |
| Caernarvonshire | Snowdon lily | Mountain rocks |
| Cardiff | Wild leek | Sandy and rocky places near the sea |
| Cardiganshire | Bog-rosemary | Mid-Wales |
| Carmarthenshire | Whorled caraway | Damp meadows |
| Denbighshire | Limestone woundwort | Roadsides and hedges |
| Flintshire | Bell heather | Heaths and moors |
| Glamorgan | Yellow whitlow-grass | Rocks and old walls |
| Merioneth | Welsh poppy | Damp, shady rocks |
| Monmouthshire | Foxglove | Woodland clearings, heaths and banks |
| Montgomeryshire | Spiked speedwell | Limestone rocks |
| Pembrokeshire | Thrift | Coastal cliffs or astride craggy islands |
| Radnorshire | Radnor lily | Limestone rocks |