Hook of Burdock Bract

Hook of Burdock Bract

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Caption: Common burdock (Arctium minus) (Compositae family). The thistle-like burs or flower heads, particularly the hooked, bristly bracts, of this bushy plant served as a model for the hook-and-loop fastener. The seeds attach themselves to passing animals to spread into a greater distance. Thus the hooks serve seed dispersion. Enhanced SEM. Image width: 683 micrometers. Magnification: 146x if the image is printed 10 cm wide. Bar: 200 micrometers.

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Keywords: arctium, arctium minus, bract, burdock, color, color enhanced, colorized, common burdock, electron micrograph, electron micrographs, enhanced, hook, hook-and-loop, hooked bract, hooked bracts, in color, micrograph, micrographs, micrography, scanning electron micrograph, scanning electron micrographs, scanning electron microscopy, science, sem, sems, velcro

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