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Transverse section through the vascular bundle in a dicot stem
	- Large (162 Kb) - Scroll down to information With labels Legend: 1 epidermis 3 phloem 4 fascicular cambium 5 xylem 7 pith 2 sclerenchyma cap 6 interfascicular cambium
English name: Sunflower Scientific name: Helianthus annuus Familia: Compositae Classis: Dicotyledonas Phylum: Angiospermae Regnum: Plantae
At the end of primary growth procambium cells begin to differentiate to cambium cells, initiating secondary growth.