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Dalmatian Toadflax

Yellow Toadflax

Dyer's Woad

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Dalmatian Toadflax
Linaria genistifolia
 
Rosette

Multiple stems may come from the base. Blue-green leaves line the stem in alternate fashion. Leaves are wedge shaped, have a thick waxy cuticle, and partially clasp the stem.
Adult

This perennial weed grows from two to nearly four feet tall.
Flower

Flowers are yellow and may have white highlights, and have long tails appearing similar to snap dragon flowers. Bloom is in late spring into summer.
Weed Infestation

Dalmatian toadflax was brought to the United States from Europe, probably for ornamental purposes. It prefers rangeland and roadside habitat with sandy soils. It is very aggressive and hard to control due to deep roots and a thick waxy leaf cuticle. It reproduces by seed and rootstock.
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