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Spiny-Leaved Sow-Thistle (Sonchus asper)

Image ID: ar63

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Other common names: Spiny Sow-Thistle
Introduced
Family: Asteraceae (Sunflower)
Height: 1 to 5 ft.
Blooms: June to October
Leaf Type: toothed
Bloom Size:  1 in. (typical)
Flower Description: Individual flowers, Parts indistinct
Location: Allegheny River Trail
Date:  8/31/2003
Notes: Vert sharply toothed leaves have rounded lobes that fold around the stem.
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Spiny-Leaved Sow-Thistle may be easily confused with:
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.

The Herbalist