Common name: Sessile Oak
Scientific name: Quercus petraea 無梗花櫟、岩生櫟
Genus: Quercus 櫟屬
Family: Fagaceae 殼斗科, oak and beech family
Origin: native
Date: 2nd & 4th May
84
89
63 Leaf lobes 4-6 pairs, rather equal (vs leaf lobes 3-5 pairs, rather unequal in Quercus robur 夏櫟、夏橡、長柄櫟、歐洲有柄橡木、歐洲白櫟、英國櫟、英國橡, pedunculate oak)
64 Leaf blade more or less tapers into petiole. (vs base of leaf blade with small lobes (auricles) where joins petiole in Quercus robur 夏櫟、夏橡、長柄櫟、歐洲有柄橡木、歐洲白櫟、英國櫟、英國橡, pedunculate oak)
80 Petioles are more than 1cm. (vs petioles short or absent in Quercus robur 夏櫟、夏橡、長柄櫟、歐洲有柄橡木、歐洲白櫟、英國櫟、英國橡, pedunculate oak)
66
65 Underside of leaf finely pubescent along midrib. (vs underside of leaf glabrous in Quercus robur 夏櫟、夏橡、長柄櫟、歐洲有柄橡木、歐洲白櫟、英國櫟、英國橡, pedunculate oak)
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32
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85
76 The male inflorescence
027
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029
68
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73 The female flowers
013
71
020
011
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