STEFAN DILLER / SCIENCE PHOTO LIBRARY STEFAN DILLER / SCIENCE PHOTO LIBRARY
Tobacco leaf trichomes, coloured scanning electron micrograph (SEM). Trichomes are specialised structures that can be glandular in nature, defend against predators, or help reduce water loss. This is a sample of Virigina tobacco, a variety of tobacco from the plant Nicotiana tabacum.
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