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Thistle, Scotch

Onopordum acanthium

Biennial; foliage is covered with woolly, pale gray hairs which give the plant a grey-green or silvery color. Stems are winged with spines along the entire length. White or purple flowers stand alone on branch tips.

Plant Details

Habitat NotesDisturbed sites, pastures, fields, rangelands, riparian areas, roadsides and annual grasslands.
Mature Height6-12’
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