- Onopordum tauricum is a biennial herb that can grow up to 8 ft. (2.4 m) tall.
- The leaves of O. tauricum are bright green in color and from 3.9-9.8 in. (10-25 cm) long. Leaves are covered with short hairs, are acutely triangular and have toothed lobes.
- Onopordum tauricum flower heads are spherical and bright purple to pink in color. They are from 3-4 in. (7.6-10.2 cm) in diameter with numerous spiny bracts. Flowering occurs in summer.
- Fruits are from 0.2-0.24 in. (5-6 mm) long. Each fruit contains several white to tan seeds from 0.31-0.39 in. (8-10 mm) long. Seeds have short bristles. This plant reproduces by seed.
- Ecological Threat
- Onopordum tauricum prefers disturbed areas including fields and roadsides. It is native to temperate Asia and eastern Europe.
Oregon Department of Agriculture Plant Programs, Noxious Weed Control 
University of California, Jepson Flora Project 
Flora of North America, www.eFloras.org 
USDA NRCS PLANTS 
USDA ARS GRIN 
Images from Bugwood.org