Sunflower stem 2
March 8, 2013
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
Louisa Howard, Charles Daghlian
Topics:
Botany, Plant anatomy, Biology, Asterales, Vascular bundle, Phloem, Helianthus, Vascular cambium, Plant Cells, Tissues, Eudicots, Plant physiology
