Swida alba (L.) Opiz

Species: Swida alba (L.) Opiz, Genus: Swida, Family: Cornaceae, Group: Angiosperms

(Swida alba (L.) Opiz)

-> Genus: Swida -> Family: Cornaceae -> Group: Angiosperms

Habitus

it is a shrub 2 - 3 m high
branches are straight, thin, flexible, sometimes drooping (they do not root)
bark is red to dark red

Buds

buds are opposite (crosswise opposite)
buds are glabrous, covered with dense rusty hairs
leaf buds are significantly smaller, 2 - 4 x 1 - 4,5 mm large, oblong-ovate, long-pointed, sessile, tightly pressed to the branch
flower buds are 5 - 7 x 3 - 4 mm large, broadly ovate, long-pointed, they grow on short stalks (brachyblasts)

Swida alba (Siberian dogwood) - flower bud

Swida alba (Siberian dogwood) - leaf bud

Shoots

shoots (shoots) are relatively thin, round, red
lenticels are sparse, small, whitish

Leaves (assimilation organs)

leaves are simple, elongated ovate to elliptical, cuneate to rounded at the base, sharply pointed at the end (apex), entire margin
upper side is dark green, sparsely hairy
lower side is greyish, more densely hairy
petiole is 5 - 30 mm long

Swida alba (Siberian dogwood) - top side

Swida alba (Siberian dogwood) - underside

Flowers

it is a tree (shrub) monoecious, flowers are bisexual
flowers are yellowish-white, grouped in dense terminal spikes with a diameter of 3 - 5 cm
it flowers in V - VI, often until late summer

Fruits – seeds

the fruit is a 6 - 8 x 5 - 7 mm large spherical drupe, bluish-white to white
the stone is ellipsoidal, longitudinally grooved, greyish, hard, 4 - 6 mm long
it ripens in VIII - X

Extension

it was originally widespread in the northeast of the European part of Russia, it goes through Siberia to the Far East, Mongolia, the north of Korea, China and Japan
it grows in river valleys and in floodplain forests
in Slovakia it occurs only as a cultivated species
it was introduced into culture in 1741

Ecology

it is a semi-shade-loving woody plant resistant to frost and high temperatures
it is a species of continental climate
it is undemanding to the content of nutrients in the soil
it does not tolerate extreme drought

Significance

it is an ornamental woody plant (shrub) with red branches, leaves that change color in autumn, white flowers and fruits
with regard to ecological requirements it is suitable for urban environments

Swida alba (Siberian dogwood) - ornamental with fruits

Swida alba (Siberian dogwood) - ornamental with flowers

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