The photo is a longitudinal cross-section of the vascular system of a pokesalad stem, revealing the ladder-like pattern of the xylem vessel elements' perforation plates.

Many modern xylems have intricate cross sections that look like gappy rings, crosses, diamonds or hearts, with dead space called pith separating bundles of xylem tissue.

A mouse's tumours, scales from a butterfly's wings and a smiling cross-section of a bracken fern are some of the incredible images from the Nikon Small World photography competition ...

Within cross-sections of the fossilized trees, researchers were surprised to discover an interconnected web of woody strands. The strands, known as xylem, are tubes that carry water from the roots ...

Filters made from tree branches can purify drinking water sources, an MIT study finds. Prototypes of these xylem filters, tested in India, show promise as a low-cost, natural filtration option.

Xylem tissue in sapwood can take bacteria out of contaminated water.

The key ingredient is plant xylem — a tissue in plants made up of vessels and tiny pores. The vessel pathways allow sap to travel up from the tree's roots to the shoots, while the pores trap air ...

The cross section looks like a ring of little trees all growing in unison. However the soft parenchyma tissue between the xylem strands was the most informative.