Key for Asian Golden Oaks (adapted from Zhou & Coombes 2001)

1a Mature leaves with golden or grey hairs beneath
2
1b Mature leaves glabrous, or with a few hairs at the base of midrib
9
 
2a Leaves with yellow hairs beneath
3
2b Leaves with grey hairs beneath
8
 
3a Hairs densely covering the secondary veins
Q. pannosa
3b Hairs not densely covering the secondary veins
4
 
4a Cup scales > 4 mm long, linear or lanceolate
Q. fimbriata
4b Cup scales < 4 mm long, lanceolate
5
 
5a Cup with bell-shaped rim, wall 2 mm thick
Q. guyavifolia
5b Cup not with bell-shaped rim, wall 1 mm thick
6
 
6a Acorn globose, diameter 1.8-2.5 cm , black when mature
Q. semecarpifolia
6b Acorn ovoid, diameter < 1.5 cm
7
 
7a Pistillate inflorescence 5-16 cm long
Q. longispica
7b Pistillate inflorescence < 5 cm long
Q. aquifolioides
 
8a Tree ; leaves elliptic elongate, densely hairy
Q. senescens
8b Shrub ; leaves elliptic to obovate, with scattered hairs
Q. monimotricha
 
9a Leaves 6-10 cm long, secondary veins not sunken above
10
9b Leaves < 6 cm long, secondary veins sunken above
11
 
10a Leaves with some scattered hairs beneath
Q. pseudosemecarpifolia
10b Leaves usually glabrous on both sides
Q. rehderiana
 
11a Leaves densely hairy at base of midrib beneath
Q. spinosa
11b Leaves without hairs at base of midrib beneath
Q. gilliana