Berberis aristata & Berberis asiatica are very difficult to identify using microscopical sections. Are there any key characters to identify the Berberis aristata from other Berberis species?
Pericycle traversed with stone cells, Medullary rays ar multiseriate oftern get sclerosed, prismatic crystals of calcium oxalate throughout the parenchyma rarely dark brown content in rays, vessels retculate and spiral are the diagnostic characters of B. aristata stem
Adhikari B, C. A. Pendry, R. T. Pennington & R.Milne, : A Revision of Berberis s.s. (Berberidaceae) in Nepal, Edinburgh Journal of Botany 69, 447-522. 2012