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The bark, light gray when young, changes to a coarse gray outer bark with lengthwise furrowing, lenticels prominent. [5] The leaves are arranged in opposite pairs, 10–30 centimetres (4–12 inches) long, pinnate with five to seven (rarely nine) leaflets, the leaflets 5–12 cm (2– 4 + 3 ⁄ 4 in) long and 3–5 cm ( 1 + 1 ⁄ 4 –2 in ...
All summer long, the leaves are bright green, happily doing their photosynthetic thing.
The tree's Latin name, torminalis, means "good for colic". The name "chequers" may have been derived from the ancient symbol of a pub being the chequer-board (as the fruit were once used to flavour beer ) [ 10 ] or the spotted pattern of the fruit, [ 11 ] though some suggest it comes from the pattern of the bark on old trees.
Britain and Ireland have few endemic trees, most being micro-species of Whitebeam. But there are some interesting endemic trees nevertheless. Apomictic Whitebeams endemic to the British Isles: Sorbus arranensis – Isle of Arran only. Arran Service Tree – Isle of Arran only. Sorbus pseudomeinichii - Isle of Arran only.
The bark is smooth and greenish-grey, becoming shallowly fissured in all old trees. The leaves are alternate, 3–12 centimeters (1 + 1 ⁄ 4 – 4 + 3 ⁄ 4 in) long, with prominent veins giving a distinctive corrugated texture, and a serrated margin. The male and female catkins appear in spring at the same time
Rhamnus cathartica is a deciduous, dioecious shrub or small tree growing up to 10 metres (33 ft) tall, with grey-brown bark and often thorny branches. The leaves are elliptic to oval, 25–90 mm (1– 3 + 1 ⁄ 2 in) long and 12–35 mm (1 ⁄ 2 – 1 + 3 ⁄ 8 in) broad; they are green, turning yellow in autumn, have toothed margins, and are arranged somewhat variably in opposite to ...
The whitebeams are members of the family Rosaceae, comprising the genus Aria.They are deciduous trees with simple or lobed leaves, arranged alternately. They are related to the rowans, and many of the endemic restricted-range apomictic microspecies of whitebeam in Europe are thought to derive from hybrids between the common whitebeam and the European rowan.
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