Petals blue or yellow Linaceae
Petals blue
Styles united above the middle. Capsules not or scarcely exceeding the calyx. Leaves linear-lanceolate, 5–20 mm long. Flowers in loose terminal corymbs. Petals 8–12 mm long, deciduous. Glabrous, perennial herb with slender erect stems. Widespread. Grasslands and open forests on WS. Fl. spring. Native Flax Linum marginale
Styles free. Capsule longer than the calyx. Larger and coarser than L. marginale in all its parts. Annual Widespread. Often along railways. Country of origin unknown. Fl. most of the year. Cultivated Flax or Linseed Linum usitatissimum