<<

13/18: Sunflower stem 2

<

>

Sunflower stem 2

Caption

Scanning electron microscope image of x-section through Helianthus annus [sunflower] stem. Image shows outer epidermal layer, followed by the cortex and then large vascular bundles. The vascular bundles have vascular cambium between the phloem (nearest the cortex) and xylem.

Asterales

Asteraceae (sunflower family)

Helianthus annus

herbaceous dicotyledon

Zeiss DSM 962 SEM

Writer

Louisa Howard, Charles Daghlian

Keywords

Botanical, SEM, stem, Asterales