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

Common name: Pedunculate Oak
Scientific name: 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
Genus: Quercus 櫟屬
Family: Fagaceae 殼斗科, oak and beech family

Origin: native

Date: 30th April

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34 Leaf lobes 3-5 pairs, rather unequal (vs leaf lobes 4-6 pairs, rather equal in Quercus petraea 無梗花櫟、岩生櫟, sessile oak) 

58 Base of leaf blade with small lobes (auricles) where joins petiole (vs leaf blade more or less tapers into petiole in Quercus petraea 無梗花櫟、岩生櫟, sessile oak)

48 Petioles short or absent (vs petioles > 1cm in Quercus petraea 無梗花櫟、岩生櫟, sessile oak) 

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40060 Underside of leaf glabrous (vs underside of leaf finely pubescent along midrib in Quercus petraea 無梗花櫟、岩生櫟, sessile oak)

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32 Bracts of male inflorescences

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56 Could you see the female flowers?

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The following photos were taken from another plant on 4th May:

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Alnus cordata 意大利榿木、那不勒斯榿木、意大利赤楊

Common name:Italian Alder
Scientific name: Alnus cordata 意大利榿木、那不勒斯榿木、意大利赤楊
Genus: Alnus 榿木屬、赤楊屬
Family: Betulaceae 樺木科, birch family

Remarks*: 

Origin: Neophyte (established after 1500 AD). It is a native of Corsica, southern Italy and Albania. It was introduced to Britain in 1820 and was recorded from the wild in 1935.

Date: 19th Feb

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6 male and female flowers

2 male flowers

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5 female flowers

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28 flowers and the fruits of previous year

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The following pictures were taken on 2nd May:

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29 Leave base cordate.

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Corylus avellana 歐榛, 歐洲榛

Common name: Hazel
Scientific name: Corylus avellana 歐榛, 歐洲榛
Genus: Corylus 榛屬*
Family: Betulaceae 樺木科, birch family

Remarks*: The name of the tree comes from the Italian town of Avella, when Carl Linnaeus (1707–78) described it as “Avellana nux sylvestris” meaning the wild nut of Avella.

Origin: native

Date: 14th Feb

3102

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16 male and female flowers. Male flowers still not yet opened.

24 male and female flowers

26 male and female flowers

56 Both male and female flowers not yet opened.

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21 female flower buds

45 female flower

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The following pictures were taken on 4th May:

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2 Leaves 5-12 cm, cordate at base.

3 Leaves sparsely hairy