Sunflower stem 3
274 of 430

Sunflower stem 3

March 8, 2013
Scanning electron microscope image of x-section through Helianthus annus [sunflower] vascular bundle, showing the vascular cambium between the phloem and xylem. Asterales Asteraceae (sunflower family) Helianthus annus herbaceous dicotyledon Zeiss DSM 962 SEM Credit: Louisa Howard, Charles Daghlian

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