PEARL-BORDERED FRITILLARY Boloria euphrosyne
HOSTPLANTS
| Plant species | Vernacular | Plant family | Status | References |
| Viola riviniana | Common Dog-violet | Violaceae | Main | A3, A5, A6, B4, B10, C8, C16, E30, F2, F3, F9, G5, G7, H3, M4, P5, P6, P9, S1, S7, S8, S17, S19, T2, T9, W12 |
| Viola spp | Violet (unspecified) | Violaceae | Main | B5, B9, D9, F8, G6, R7, W13 |
| Viola palustris | Marsh Violet | Violaceae | Main ("north") | A3, D2, E30, H3, P5, T2, T5 |
| Viola canina | Heath Dog-violet | Violaceae | Secondary | A3, C8, H18 |
| Viola hirta | Hairy Violet | Violaceae | Secondary | C8 |
| Viola lutea | Mountain Pansy | Violaceae | Secondary | A6 |
| Viola odorata | Sweet Violet | Violaceae | Secondary | A6, C8, P5 |
| Viola tricolor | Wild Pansy | Violaceae | Secondary | C8, S8 |
| Viola x wittrockiana | Garden Pansy | Violaceae | In captivity only | A6, P5, S7, S8, S19 |
| Primula vulgaris | Primrose | Primulaceae | Unlikely | B4, B5, B9, G7, S7, S8, S19 |
NECTAR SOURCES
| Plant species | Vernacular | Plant family | No. records | References |
| Lotus corniculatus | Common Bird's-foot-trefoil | Fabaceae | 68 | 1, 30, 39, 119 |
| Ajuga reptans | Bugle | Lamiaceae | 42 | 1, 22, 25, 26, 30, 36, 40, 56.05, 71.04, 80.02, 105, 108, 112, 113, 117, 118, 139 |
| (not given) | "other yellow Composite" | Asteraceae | 24 | 119 |
| Ranunculus sp. | Buttercup (unspecified) | Ranunculaceae | 17 | 30, 39, 119 |
| Taraxacum sp. | Dandelion | Asteraceae | 13 | 39, 119 |
| Cirsium sp. | Thistle (unspecified) | Asteraceae | 9 | 39, 119 |
| Glechoma hederacea | Ground-ivy | Lamiaceae | 7 | 119 |
| Vicia sp. | Vetch (unspecified) | Fabaceae | 6 | 119 |
| Hyacinthoides non-scripta | Bluebell | Liliaceae | 5 | 30, 39, 108, 119 |
| Potentilla sp. | Cinquefoil (unspecified) | Rosaceae | 2 | 119 |
| Trifolium pratense | Red Clover | Fabaceae | 2 | 119 |
| Lychnis flos-cuculi | Ragged-Robin | Caryophyllaceae | 1 | 39 |
| Viola sp. | Violet (unspecified) | Violaceae | 1 | 119 |
| Potentilla erecta | Tormentil | Rosaceae | 1 | 39 |
| Lathyrus linifolius | Bitter-vetch | Fabaceae | 1 | 30 |
| Trifolium repens | White Clover | Fabaceae | 1 | 119 |
| Prunella vulgaris | Selfheal | Lamiaceae | 1 | 39 |
| Hieracium sp. | Hawkweed | Asteraceae | 1 | 39 |
| Dactylorhiza sp. | Marsh-orchid (unspecified) | Orchidaceae | 1 | 119 |
