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Yellow Starthistle (Centaurea solstitialis)
Centaurea solstitialis is a tap-rooted annual forb in the Asteraceae (Sunflower) family.
They have yellow solitary flowers with stiff, 1-inch spines protruding from their involucre. Their basal leaves are deeply lobed, upper leaves are small and sharply pointed, and while leaves and stem are covered with cottony fiber
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