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UK Nature  > Wild Flowers  > Yellow Wild Flowers  > Oenothera biennis

  • Close up of flower
  • Overall view of plant, showing both flowers and leaves

Scientific Name:   Linaria vulgaris
Common Name:   Toadflax

Linaria vulgaris, more commonly known as Toadflax, is a spreading plant that forms patches of bright yellow spires throughout the summer in rough grassland, road verges, hedgebanks and disturbed ground.

It has narrow grey-green leaves arranged in whorls alternating up the stem. The stems terminate in dense clusters of yellow spurred flowers similar in appearance to snapdragons. Because the flower is largely closed by its underlip, pollination requires strong insects such as bees and bumble bees.

Common toadflax grows well on loose, well-drained soil in sun or partial shade. It can be grown in a lawn, meadow or flower border. Care should be taken when planting into a cultivated border as it can become quite invasive. Just as common bird's foot trefoil is sometimes known as 'bacon and eggs', another name for this species is 'butter and eggs'.
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