Greater burdock burr (Arctium lappa). This structure contains individual fruits (achenes), attached by a papery bract (modified leaf). The end of each

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Greater burdock burr (Arctium lappa). This structure contains individual fruits (achenes), attached by a papery bract (modified leaf). The end of each bract is hooked, which enables them to become attached to the fur of passing animals, or in human clothing, thus aiding the dispersal of the burr.

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Size: 4368px × 2912px
Photo credit: © DR KEITH WHEELER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -life, achene, achenes, animal, arctium, barb, barbed, barbs, biological, biology, botanical, botany, bristle, bristles, bur, burdock, burr, capitulum, close-, compositae, cut, cut-, detail, dispersal, flora, fruit, greater, involucre, lappa, life, mature, nature, part, parts, plant, plants, reproduction, reproductive, ripe, seed, spines, spiny, structure, studio, wildflower