Key for Asian Golden Oaks (adapted from Zhou & Coombes 2001)
1a | Mature leaves with golden or grey hairs beneath |
2
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1b | Mature leaves glabrous, or with hairs at the base of midrib |
9
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2a | Leaves with yellow hairs beneath |
3
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2b | Leaves with grey hairs beneath |
8
|
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3a | Hairs densely covering the secondary veins |
Q. pannosa
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3b | Hairs not densely covering the secondary veins |
4
|
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4a | Cup scales > 4 mm long, linear or lanceolate |
Q. fimbriata
|
4b | Cup scales < 4 mm long, lanceolate |
5
|
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5a | Cup with bell-shaped rim, wall 2 mm thick |
Q. guyavifolia
|
5b | Cup not with bell-shaped rim, wall 1 mm thick |
6
|
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6a | Acorn globose, diameter 1.8-2.5 cm , black when mature |
Q. semecarpifolia
|
6b | Acorn ovoid, diameter < 1.5 cm |
7
|
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7a | Pistillate inflorescence 5-16 cm long |
Q. longispica
|
7b | Pistillate inflorescence < 5 cm long |
Q. aquifolioides
|
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8a | Tree ; leaves elliptic elongate, densely hairy |
Q. senescens
|
8b | Shrub ; leaves elliptic to obovate, with scattered hairs |
Q. monimotricha
|
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9a | Leaves 6-10 cm long, secondary veins not sunken above |
10
|
9b | Leaves < 6 cm long, secondary veins sunken above |
11
|
|
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10a | Leaves with some scattered hairs beneath |
Q. pseudosemecarpifolia
|
10b | Leaves usually glabrous on both sides |
Q. rehderiana
|
|
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11a | Leaves densely hairy at base of midrib beneath |
Q. spinosa
|
11b | Leaves without hairs at base of midrib beneath |
Q. gilliana
|