Greater knapweed seed heads (Centuarea scabiosa). Photographed in September.

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Size: 4961px × 3508px
Photo credit: © BOB GIBBONS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: achene, achenes, autumn, autumnal, biological, biology, botanical, botany, centaurea, fruit, fruits, greater, head, heads, knapweed, nature, parts, perennial, plant, plants, reproduction, reproductive, scabiosa, seed, seeds, september, structures, wildflower, wildflowers