Invasive Plant

Toadflax (Yellow and Common)

Linaria vulgaris

About This Species

Native to Europe, Yellow toadflax, also known as Common toadflax, spreads by a creeping root system. It is typically found in cultivated fields, pastures, along roadsides and other disturbed areas. Yellow toadflax can out-compete native plants, which negatively affects plant crops, and reduces grass growing in pastures and rangelands

How to Identify

Yellow toadflax grows up to 80 cm in height and has long, slim, light green leaves. Flowers are light yellow with an orange spot on its lower lip, like a snapdragon. Dalmatian toadflax is a similar plant with yellow, snapdragon-like flowers but grows taller, has larger flowers, and heart shaped leaves.

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Learn about best practices

A few non-invasive alternatives to plant instead of Toadflax (Yellow and Common) include:

  • Yellow beard-tongue (Penstemon barbatus ‘Schooley’s Yellow’)
  • Mersea yellow penstemon (Penstemon pinifolius ‘Mersea Yellow’)
  • Daylily (Hemerocallis hybrids)
  • Snapdragons (Antirrhinum majus)
  • Torch lily (Kniphofia ‘Little Maid’)

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