Cottonwood tree seed fibres (Populus sp.), SEM

Cottonwood tree seed fibres (Populus sp.), SEM

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Credit: DENNIS KUNKEL MICROSCOPY/SCIENCE PHOTO LIBRARY

Caption: Cottonwood tree seed fibres (Populus deltoides), coloured scanning electron micrograph (SEM). In the spring cottonwood trees (Populus deltoides) bloom and produce seeds that are surrounded by small tufts of cotton-like material called cottonwood fibres. Cottonwood seeds bear long white fibres that are made primarily of cellulose. The seeds are wind dispersed due to the lightweight tufts of cottonwood fibres attached to the seeds. Magnification: x140 when shortest axis printed at 25 millimetres.

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Keywords: 23523c, cellulose fibre, cellulose fibres, colored, coloured, cotton wood seed, cotton wood seed fibre, cotton wood seed fibres, cotton wood seeds, cotton wood tree, cotton wood trees, cottonwood cellulose fibre, cottonwood cellulose fibres, cottonwood cotton, eastern cottonwood, eastern cottonwood tree, false-colored, false-coloured, malpighiales, plant fibre, plant fibres, plant seed fibre, plant seed fibres, populus, populus deltoides, populus fremontii, populus trichocarpa, rosid, rosids, salicaceae, saliceae, scanning electron micrograph, seed trichome, seed trichomes, sem, trichome, trichomes, willow, willow family, wind dispersal, wind dispersed

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