Figure 3 3 2 4: Cross section of a sunflower (Helianthus) stem, illustrating a eustele. Vascular bundles are arranged in a ring. The interfascicular regions between the vascular bundles are thick compared to the solenostele, where they were too thin to be visible. The ground tissue is separated into an outer cortex and a central pith.. Start studying helianthus stem cross section. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
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Single, prepared slide of a cross section of a young stem of helianthus Shows typical dicot stem's primary growth structures. Useful for exploring plant biology, dicot stem structures, and development of stem structures as they age Great for biology classrooms to explore structure-function connection as per NGSS standa. The pith occupies the central part of the stem and is composed of thin-walled parenchyma cells often with larger intercellular spaces than you would find in the cortex. Cross section of a young sunflower (Helianthus) stem, magnified 100x. Berkshire Community College Bioscience Image Library. Public domain