DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Leaf surface trichomes (Salvia divinorum), scanning electron micrograph (SEM). The upper leaf surface contains numerous multicellular, glandular and non-glandular trichomes (hairs). Salvia divinorum is a perennial herb in the mint family native to certain areas of the Sierra Mazateca region of Oaxaca, Mexico. The plant grows in large groupings to well over 3 feet in height with characteristic hollow square stems and flowers. S. divinorum is one of several hallucinogenic plants employed by the Mazatec Indians. Magnification: x20 when shortest axis printed at 25 millimetres.
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