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Yellow Hawkweed (Hieracium pratense)
Image ID: gtwn36
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Other common names: King Devil
Introduced
Family:
Asteraceae (Sunflower)
Height: 1 to 3 ft.
Blooms: May to
August
Leaf Type:
smooth
Bloom Size: 0.5 in. (typical)
Flower Description:
Flat or rounded clusters,
Parts indistinct
Location: Ghost Town Trail
Date: 6/11/2006
More photos of this flower
Yellow Hawkweed may be
easily confused with:
- Canada Hawkweed
Yellow hawkweed has a hairy, smooth-edged leaf; Canada hawkweed has a sparsely toothed, leaf without much hair.
- Cat's Ear
Cat's ear has a flower that is an inch or more across, while yellow hawkweed blooms are only about a half an inch across. Yellow hawkweed blooms are clustered, while cat's ear has single flowers.
- Common Sow-Thistle
The sow-thistle has a leaf that is stiff and deeply lobed, while yellow hawkweed has a softer leaf with a smooth edge.
- Large Mouse-Ear Hawkweed
The flowers on yellow hawkweed are much smaller than those on large mouse-ear hawkweed.
- Mouse-Ear Hawkweed
The flowers on yellow hawkweed are much smaller than those on mouse-ear hawkweed.
- Spiny-Leaved Sow-Thistle
Leaves of the sow-thistle are stiff with thorns.
We started out as wildflowers from the bicycle trails of western Pennsylvania, but we've
grown!
Meyer, Joseph E. (1918). The Herbalist and Herb Doctor. Hammond, Ind.: Indiana Herb Gardens. 400 pp.
