What does "pincushion flower" mean?

Old World annual having fragrant purple to deep crimson flower heads; naturalized in United States

Pincushion flower

Common synonyms include: mournful widow, pincushion, pincushions, scabiosa atropurpurea, scabious, sweet scabious.

Rare ·Advanced level

Noun

1
Old World annual having fragrant purple to deep crimson flower heads; naturalized in United States wordnet