False-colour SEM of a barb of goosegrass

False-colour SEM of a barb of goosegrass

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY

Caption: False-colour scanning electron micrograph of a single barb of the hooked fruit of cleavers or goosegrass, Galium aparine, grasping a strand of Shetland wool. Commonly known as a burr, the fruit contains a single seed. It is dispersed by means of the hooks on its surface, which attach to animal fur or human clothing & are thus transported far & wide. The fruit may also pass undamaged through the digestive system of some animals. The synthetic material used in the clothing industry as a fastener, is based on the same principle as the burr. Magnification: x120 at 6x4.5cm

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Keywords: barbs, botany, bur, cleaver, false-coloured, fruit, galium aparine, goosegrass, hooked, nature, part, parts, plant, plants, reproduction, reproductive, seed, structure, velcro

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