Robinia viscosa Vent.

Species: Robinia viscosa Vent., Genus: Robinia, Family: Fabaceae, Group: Angiosperms

(Robinia viscosa Vent.)

-> Genus: Robinia -> Family: Fabaceae -> Group: Angiosperms

Habitus

it is a tree growing up to 12 m
originally in the eastern part of North America

Leaves (assimilation organs)

leaves are oddly pinnately compound, 20 - 25 cm long
they are composed of 6 - 12 pairs of individual leaflets
individual leaves are 25 - 45 x 20 - 25 mm large, oblong-ovate, entire margin, rounded at the base, bristle-pointed at the apex
upper side is dark green, lower side lighter, glabrous, or sparsely grey-chloate
leaf petioles are 2 - 3 mm long
originally in the eastern part of North America

Flowers

it is a monoecious tree, flowers are bisexual, pink, heart-shaped with a yellow spot
they are grouped in 5 - 10 cm long, abundant racemes
it flowers in May - June, about two weeks earlier than the black locust (Robinia pseudoacacia)

Fruits – seeds

the fruit is a pod, glandular-hairy, 5 - 9 cm long
it ripens in August

Extension

it was originally widespread in the eastern part of the North American continent
it was introduced to Europe in 1791

Ecology

it is sensitive to low temperatures

Significance

it is a decorative woody plant mainly with large pinkish flowers

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