Jean-Marie shared with me some photos of cane taken at the microscopic level. He has added a level of artistry through use of different dyes.
Most notable are his comparisons of cane of different densities. Here is scientific evidence of why reeds feel different from one to the next, although the construction may be nearly identical.
In the photos, the background material is cellulose, the triangular or teardrop shaped objects are lignified cellulose or vascular bundles. A lignin is: "