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| Fraxinus ornus | ||||||||||||||
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 Foliage and flowers
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| Fraxinus ornus L. |
Fraxinus ornus (Manna Ash) is a species of Fraxinus native to southern Europe and southwestern Asia, from Spain and Italy north to Austria and the Czech Republic, and east through the Balkans, Turkey, and western Syria to the Lebanon.[1][2][3]
It is a medium-sized deciduous tree growing to 15–25 m tall with a trunk up to 1 m diameter. The bark is dark grey, remaining smooth even on old trees. The buds are pale pinkish-brown to grey-brown, with a dense covering of short grey hairs. The leaves are in opposite pairs, pinnate, 20-30 cm long, with 5-9 leaflets; the leaflets are broad ovoid, 5-10 cm long and 2-4 cm broad, with a finely serrated and wavy margin, and short but distinct petiolules 5–15 mm long; the autumn colour is variable, yellow to purplish. The flowers are produced in dense panicles 10–20 cm long after the new leaves appear in late spring, each flower with four slender creamy white petals 5–6 mm long; they are pollinated by insects. The fruit is a slender samara 1.5-2.5 cm long, the seed 2 mm broad and the wing 4–5 mm broad, green ripening brown.[1][4][5]
Cultivation and uses
A sugary extract from the sap is extracted by making a cut in the bark;[1] this was compared in late mediaeval times (attested by c.1400[6]) with the biblical manna, giving rise to the English name of the tree.
It is frequently grown as an ornamental tree in Europe north of its native range, grown for its decorative flowers (the species is also sometimes called "Flowering Ash"). Some cultivated specimens are grafted on rootstocks of Fraxinus excelsior, with an often very conspicuous change in the bark at the graft line to the fissured bark of the rootstock species.[4]
References
- ^ a b c Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
- ^ Flora Europaea: Fraxinus ornus
- ^ Med-Checklist: Fraxinus ornus
- ^ a b Mitchell, A. F. (1974). A Field Guide to the Trees of Britain and Northern Europe. Collins ISBN 0-00-212035-6
- ^ Mitchell, A. F. (1982). The Trees of Britain and Northern Europe. Collins ISBN 0-00-219037-0
- ^ Oxford English Dictionary
 Foliage and immature fruit |
 Tree in early autumn colours |
 Flowers |
 Fruit |
Wikipedia content modification information:
- This page was last modified on 13 August 2008, at 10:06.
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