Wood-anatomical description (IAWA hardwood codes):
*Growth rings: (1: growth ring boundaries distinct); (2: growth ring boundaries indistinct or absent). *Vessels: 5: wood diffuse-porous; 13: simple perforation plates; 22: intervessel pits alternate; (23: shape of alternate pits polygonal); 25: intervessel pits small (4–7 μm); 29: vestured pits; 30: vessel-ray pits with distinct borders; similar to intervessel pits in size and shape throughout the ray cell; 41: mean tangential diameter of vessel lumina 50–100 μm; (42: mean tangential diameter of vessel lumina 100–200 μm); (47: 5–20 vessels per square millimetre); 48: 20–40 vessels per square millimetre. *Tracheids and fibres: 61: fibres with simple to minutely bordered pits; 66: non-septate fibres present; 69: fibres thin- to thick-walled; 70: fibres very thick-walled. *Axial parenchyma: (76: axial parenchyma diffuse); 78: axial parenchyma scanty paratracheal; 79: axial parenchyma vasicentric; 93: eight (5–8) cells per parenchyma strand. *Rays: 97: ray width 1–3 cells; 109: rays with procumbent, square and upright cells mixed throughout the ray; 115: 4–12 rays per mm; 116: <font size="1">≥</font> 12 rays per mm. *Mineral inclusions: 136: prismatic crystals present; 137: prismatic crystals in upright and/or square ray cells; 139: prismatic crystals in radial alignment in procumbent ray cells.
(P. Détienne & E.A. Wheeler)