Fraxinus ornus

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Oleaceae
Tribus: Oleeae
Subtribus: Fraxininae
Genus: Fraxinus
Sectio: F. sect. Ornus
Species: Fraxinus ornus
Subspecies: F. o. subsp. cilicica – F. o. subsp. ornus
Name

Fraxinus ornus L.
Synonyms

Homotypic
Fraxinus montana Salisb., Prodr. Stirp. Chap. Allerton: 14. 1796, nom. superfl.
Ornus europaea Pers., Syn. Pl. 1: 9. 1805.
Ornus ornus (L.) H.Karst., Deut. Fl.: 1045. 1883, nom. inval.

References

Linnaeus, C. 1753. Species Plantarum. Tomus II: 1057. Reference page.
Wallander, E. 2013. Systematics and floral evolution in Fraxinus (Oleaceae). Belgische Dendrologie Belge 2012: 38–58. PDF. Reference page.
Govaerts, R. et al. 2019. Fraxinus ornus in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 January 30. Reference page.
International Plant Names Index. 2019. Fraxinus ornus. Published online. Accessed: 30 January 2019.

Vernacular names
azərbaycanca: Ağ göyrüş
български: Мъждрян
català: Freixe de flor
čeština: Jasan zimnář
Cymraeg: Onnen Eiddil
dansk: Mannaask
Deutsch: Manna-Esche
English: Manna Ash
español: Fresno florido
euskara: Lizar loredun
suomi: Mannasaarni
français: Frêne à fleurs
galego: Freixo de flor
hrvatski: Crni jasen
magyar: Virágos kőris
italiano: Orno
македонски: Црн јасен
Nederlands: Pluimes
norsk nynorsk: Mannaask
norsk: Mannaask
polski: Jesion mannowy
română: Mojdrean
slovenščina: Mali jesen
svenska: Manna-ask
Türkçe: Çiçekli dişbudak

Fraxinus ornus, the manna ash[1] or South European flowering 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 Lebanon and Armenia.[2][3][4]

Description

Fraxinus ornus is a medium-sized deciduous tree growing to 15–25 m (49–82 ft) 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 (7.9–12 in) long, with 5 to 9 leaflets; the leaflets are broad ovoid, 5–10 mm (0.2–0.4 in) long and 2–4 cm (0.8–2 in) broad, with a finely serrated and wavy margin, and short but distinct petiolules 5–15 mm (0.20–0.59 in) long; the autumn colour is variable, yellow to purplish.

The flowers are produced in dense panicles 10–20 cm (3.9–7.9 in) long after the new leaves appear in late spring, each flower with four slender creamy white petals 5–6 mm (0.20–0.24 in) long; they are pollinated by insects.

The fruit is a slender samara 1.5–2.5 cm (0.59–0.98 in) long, the seed 2 mm (0.08 in) broad and the wing 4–5 mm (0.2–0.2 in) broad, green ripening brown.[2][5][6]
Cultivation and uses

Fraxinus ornus is frequently grown as an ornamental tree in Europe north of its native range 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.[5]

A sugary extract from the sap may be obtained by making a cut in the bark;[2] this was compared in late medieval times (attested by around 1400 AD[7]) with the biblical manna, giving rise to the English name of the tree, and some of the vernacular names from its native area (fresno del maná in Spanish, frassino da manna in Italian). In fact, the sugar mannose and the sugar alcohol mannitol both derive their names from the extract.
References

BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
Flora Europaea: Fraxinus ornus
Med-Checklist: Fraxinus ornus
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