houndstongue

Lamiales > Boraginaceae > Cynoglossum officinale L.
Synonym(s): gypsyflower

Houndstongue is a biennial plant that is 8-48 in. (20-122 cm) tall. First years growth is strictly vegetative and flowering occurs the second year. The first year the basal leaves are petiolate, elliptical, dark green and 6-8 in. (15-20 cm) long. The leaves on the flowering stem are alternate, sessile or clasping and narrower towards the top of the plant. In the early summer, flowers appear in racemes from the axils of the upper leaves. Flowers are reddish-purple with a five-lobed corolla. Houndstongue is native to Eurasia and occurs in riparian zones, coastlands, grasslands and agricultural areas.


Identification, Biology, Control and Management Resources


Selected Images from Invasive.org

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Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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Fruit(s);
Mary Ellen (Mel) Harte, , Bugwood.org
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Fruit(s);
Richard Old, XID Services, Inc., Bugwood.org
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Fruit(s);
Kurt Stueber, Max-Planck-Institute for Plant Breeding Research, Cologne, Bugwood.org
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Flower(s);
Mary Ellen (Mel) Harte, , Bugwood.org
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Flower(s);
Mary Ellen (Mel) Harte, , Bugwood.org
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Flower(s);
Richard Old, XID Services, Inc., Bugwood.org
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Plant(s);
Mary Ellen (Mel) Harte, , Bugwood.org
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Plant(s);
Richard Old, XID Services, Inc., Bugwood.org
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Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
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Diagram or Graphic; Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 76.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
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Invasive Reference(s):

Check Invasive.org for most current lists.
  • California - Invasive Plant Inventory
  • Colorado - Noxious Weed Law
  • Montana - Noxious Weed Law
  • Nevada - Noxious Weed Law
  • Oregon - Noxious Weed Law
  • Washington - Noxious Weed Law
  • Wyonming - Noxious Weed Law


External Links


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