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sow thistle

DEFINITIONS OF: sow thistle

1

n any of several Old World coarse prickly-leaved shrubs and subshrubs having milky juice and yellow flowers; widely naturalized; often noxious weeds in cultivated soil

Synonyms:
milk thistle
Types:
Sonchus oleraceus, milkweed
annual Eurasian sow thistle with soft spiny leaves and rayed yellow flower heads
Type of:
bush, shrub
a low woody perennial plant usually having several major stems
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