Quercus donnaiensis

The original description states that the tree grows to 25 m and a distinguishing feature of Quercus donnaiensis is the yellow/golden tomentum covering the whole young tree: including young twigs, which later become glabrous and dark brown.^[4]

The leaves are 100-160 x 40-50 mm, oval-lanceolate in shape, with a few peripheral teeth in upper 1/3; they are densely tomentose at first, becoming hairless, but with a persistent tomentum along midrib. this is nearly flat above, prominent beneath, with 9-14 pairs of secondary veins, at an angle of 60° from midrib; tertiary veins are not visible. The petiole is tomentose and 10-20 mm long.

Female catkins are 25 mm long, with 5-6 flowers on a tomentose rachis; there are typically 4 styles with stigmas that are thick and dark. The acorns are 15-17 mm long x 12 mm wide, loosely pubescent and rounded at tip. They are in groups of 4 to 5 on a 70-80 mm rachis and take 2 years to mature. The cupule is half-round and 15 mm in diameter, with 5-6 concentric scaley rings, enclosing 1/2 of the nut.^[4]

• Data related to Quercus at Wikispecies
• Media related to Quercus at Wikimedia Commons