Hooked seed or bur of goosegrass, Galium

Hooked seed or bur of goosegrass, Galium

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Caption: Scanning electron micrograph of a hooked fruit of cleavers or goosegrass, Galium aparine, entangled in Shetland wool. Commonly known as a bur, the fruit contains a single seed, which is dispersed by means of the barbs on the surface. The barbs attach to animal fur or human clothing & are transported for some distance before being removed. 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 hooked fruit. Mag: X160 (at 10x8 size).

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Keywords: barbs, botany, bur, cleaver, fruit, galium aparine, goosegrass, hooked, nature, part, parts, plant, plants, reproduction, reproductive, scanning electron micrograph, seed, sem, shetland wool, structure

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