Dalmatian toadflax

Scrophulariales > Scrophulariaceae > Linaria dalmatica (L.) P. Mill.

Dalmatian toadflax is a short-lived, perennial herb that can grow 3.9 ft. (1.2 m) tall. Leaves are sessile, alternate, entire, 1.2-2.4 in. (3-6 cm) long and bluish-green. Flowering occurs in May to September, when bright yellow, snapdragon-like flowers develop. Flowers, including the spur, are 1.4-2 in. (3.5-5 cm) long and occur in racemes at the apex of the stems. Fruits are capsules that are 0.1-0.3 in. (3-7 mm) long. Each capsule contains numerous small, black-brown, ridged seeds. Dalmatian toadflax is native to Europe and was introduced into North America, as an ornamental, in the late 1800s. Plants occur in fields, pastures, roadsides and rangelands.


Identification, Biology, Control and Management Resources

  • Weeds of the Week - USDA Forest Service, Northeastern Area, Forest Health Protection

Selected Images from Invasive.org

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Seedling(s);
Linda Wilson, University of Idaho, Bugwood.org
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Plant(s);
Bob Richard, USDA APHIS PPQ, Bugwood.org
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Plant(s); Mature Dalmatian toadflax plant with vertical (flowering) and prostrate (nonflowering) stems.
Linda Wilson, University of Idaho, Bugwood.org
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Foliage;
Linda Wilson, University of Idaho, Bugwood.org
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Feature(s); Possible hybrid toadflax plant (center) between yellow toadflax (left) and Dalmatian toadflax (right).
Elizabeth Goulet, Cornell University, Bugwood.org
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Feature(s); Nonflowering, prostrate Dalmatian toadflax shoots produced mid- to late summer.
Linda Wilson, University of Idaho, Bugwood.org
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Fruit(s);
Linda Wilson, University of Idaho, Bugwood.org
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Flower(s);
Richard Old, XID Services, Inc., Bugwood.org
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Plant(s);
Utah State University Archive, Utah State University, Bugwood.org
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Plant(s);
Utah State University Archive, Utah State University, Bugwood.org
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Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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Infestation;
Steve Dewey, Utah State University, Bugwood.org
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Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
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Invasive Reference(s):

Check Invasive.org for most current lists.
  • Arizona - Noxious Weed Law
  • Colorado - Noxious Weed Law
  • Montana - Noxious Weed Law
  • New Mexico - Noxious Weed Law
  • Nevada - Noxious Weed Law
  • North Dakota - Noxious Weed Law
  • Oregon - Noxious Weed Law
  • South Dakota - Noxious Weed Law
  • Wyonming - Noxious Weed Law


External Links


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