meadow hawkweed USDA PLANTS Symbol: HICA10
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Hieracium caespitosum Dumort.

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Taxonomic Rank: Magnoliopsida: Asterales: Asteraceae
Synonym(s): yellow hawkweed
Native Range: Not Found (BAIL);

Meadow hawkweed is a perennial plant in the sunflower family (Asteraceae). It grows from 1-3 ft. (0.3-0.9 m) tall and produces a milky sap when crushed. Leaves are mostly basal, lance shaped, hairy, 2-10 in. (5.1-25.4 cm) long and 1 in. (2.5 cm) wide. Flowers are yellow, dandelion-like, and develop in summer to fall. Meadow hawkweed is native to Europe and occurs in fields, roadsides and sparse woodlands. It was first found in the United States in Washington in 1969.

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Infestation;
Linda Wilson, University of Idaho, Bugwood.org
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Infestation;
Linda Wilson, University of Idaho, Bugwood.org
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Flower(s);
Tom Heutte, USDA Forest Service, Bugwood.org
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Stem(s);
Tom Heutte, USDA Forest Service, Bugwood.org
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Stem(s); Stem
Tom Heutte, USDA Forest Service, Bugwood.org
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Plant(s);
Michael Shephard, USDA Forest Service, Bugwood.org
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Flower(s);
Michael Shephard, USDA Forest Service, Bugwood.org
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Flower(s);
Elizabeth Bella, USDA Forest Service, Bugwood.org
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Plant(s); Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 333.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
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EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

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U.S. National Parks where reported invasive:
Yellowstone National Park (Wyoming)



Invasive Listing Sources:
Faith Campbell, 1998
Pacific Northwest Exotic Pest Plant Council, 1998