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Compositae (This genus is now usually)

This genus is now usually included under Cnicus. Nearly hardy herbaceous plants, differing from Cnicus proper in the covering of the achenes being hardened, not membranous; and from Carduus in the pappus being feathery, not simple. Flower-heads from 1in. to 2in. in diameter, generally arranged in corymbs or long leafy racemes. Leaves usually lanceolate, with very spiny margins. Of the entire genus, the only two worth much attention are C.