N 80-200 cm
Distinct annual rings, ring porous, vessels in the latewood in radial groups, earlywood vessel diameter 100 – 150 mm, latewood vessel diameter 40-60 mm, vessel frequency 100-200 mm2, simple perforations, with helical thickenings. With vascular tracheids, fibers thin-to thick-walled, with tension wood, with small pits, paratracheal scanty parenchyma, ray width 1-2 cells, rays heterocellular with 2-4 upright marginal cells, with a fewprismatic crystals.
With small groups of sieve tubes, with prismatic crystals and many oil ducts.
For explanations please see the Feature Characteristics.
© 2005 WSL - F. Schweingruber, W. Landolt, last update 18.11.2010