| 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 |
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| 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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| Selected Images from Invasive.org | View All Images at Invasive.org |
 Foliage; Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); Stem Tom Heutte, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); Stem Tom Heutte, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Elizabeth Bella, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Tom Heutte, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Michael Shephard, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Michael Shephard, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); in flower Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Roadside infestation Tom Heutte, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Linda Wilson, University of Idaho, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Linda Wilson, University of Idaho, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Diagram or Graphic; 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 Additional Resolutions & Image Usage |
| 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. |
| U.S. National Parks where reported invasive: |
| Yellowstone National Park (Wyoming) |
| Invasive Listing Sources: |
| Faith Campbell, 1998 |
| Pacific Northwest Exotic Pest Plant Council, 1998 |
