M. I. WALKER / SCIENCE PHOTO LIBRARY M. I. WALKER / SCIENCE PHOTO LIBRARY
Freshly gathered, uncleaned cornflower seeds. The achenes (technically fruits) of the cornflower (Centaurea cyanus) bear a shaving brush-like tuft of bristles derived from the sepals of the florets (like the parachute of a dandelion achene). HFW = 20mm.
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