Fraxinus ornus L.

Species: Fraxinus ornus L., Genus: Fraxinus, Family: Oleaceae, Group: Angiosperms

(Fraxinus ornus L.)

-> Genus: Fraxinus -> Family: Oleaceae -> Group: Angiosperms

Habitus

it is a tree 8 -15 m high, but often only as a shrub
crown is broadly ovate to spherical
bark is smooth, light grey, later dark grey, in older age only slightly shallowly fissured bark

Fraxinus ornus (South European flowering ash) - Burda, Kováčovské hills (8/2014)

Fraxinus ornus (South European flowering ash) - bork

Buds

buds are arranged crosswise opposite
bud pairs are directly to obliquely opposite
covering scales are grey to brownish, tomentose !
it is morphologically similar to Fraxinus excelsior

Fraxinus ornus (South European flowering ash)

Shoots

shoots are olive green to brownish grey-green
shoots are round in cross section, often quadrangular
lenticels are prominent, brown

Leaves (assimilation organs)

the leaves are compound - oddly pinnately compound, 20 - 30 cm long
they are composed of 3 - 4 pairs of individual leaves
individual leaves are elliptical, ovate to oblong-ovate, the margin is serrate
the upper side is darker
the lower side is lighter, on the midrib and in the vein axils first white, later rusty tomentose

Fraxinus ornus (South European flowering ash) - top side

Fraxinus ornus (South European flowering ash) - twig with leaves

Fraxinus ornus (South European flowering ash) - underside on the midrib and in the vein axils white tomentose

Fraxinus ornus (South European flowering ash) - underside

Flowers

the tree is monoecious, the flowers are mostly bisexual, yellow-white, grouped in abundant terminal panicles, strongly fragrant
it is flowering in IV – V, simultaneously with the development of the leaves

Fruits – seeds

the fruit is a winged achene, 30 - 40 x 5 - 8 mm large, linguoid to lanceolate
the wing is widest in the upper third
it ripens in August

Fraxinus ornus (South European flowering ash) - infructescence

Extension

it was originally widespread in southern Europe (from Spain through the Balkans to Asia Minor)
it has the northern limit of its distribution in southern Slovakia
on warm sunny slopes and in forest-steppes, such as Devínska Kobyla and Kováčovské hills, it forms communities with downy oak (Quercus pubescens)

Fraxinus ornus (South European flowering ash) - Devínska Kobyla (7/2011)

Fraxinus ornus (South European flowering ash) - under the castle wall of Uhrovec Castle (6/2021)

Ecology

it is a light-loving woody plant resistant to drought and high temperatures
it grows mainly on limestone
it often freezes when grown in colder areas

Significance

for greening extremely dry limestone habitats
it is also suitable for urban plantings (decorative when in bloom)
it is protected by law

Súbory cookies:

S cieľom zabezpečiť riadne fungovanie tejto webovej lokality ukladáme niekedy na vašom zariadení malé dátové súbory, tzv. cookie.
Ak povolíte všetky cookies a navštívite nás nabudúce, pripojíte sa vďaka ním rýchlejšie, a náš web vám ponúkne relevantné informácie a umožní vám počas objednávky jednoduchšie vyplniť vaše údaje. Súbory cookies používame najmä na anonymnú analýzu návštevnosti a vylepšovania našich stránok. Ak sa rozhodnete neakceptovať cookies, nebudete môcť používať niektoré funkcie na našej webovej stránke.