Hybrid black poplar (Populus x canadensis) - trunk close up - October 2017
A Hybrid black poplar in the St Thomas area of Exeter, UK. === Video taken: 06/09/2017 The Hybrid Black Poplar is a commonly planted and naturalised variety of the Wild Black Poplar, and is frequently seen along riversides, roadsides and in parks. Grown for ornamental planting and timber production, it originated in France in the 18th century. Taller and straighter than the native Wild Black Poplar, the Hybrid Black Poplar has slightly rounder leaves which are dark green above and pale below, giving the tree a silvery appearance. Hybrid black poplar - this is the name given to a range of cultivars originating from a cross between our native Black Poplar P. nigra and the American Eastern Cottonwood P. deltoides. The commonest of these cultivars is Black Italian Poplar 'Serotina'. It is very common in cities, towns, parks and gardens and as a screen for factories etc. It is a very quick grower, putting on up to 2m a year. The leaves emerge in late May and are reddish-brown at first, becoming green later. It is fairly widespread so you're likely to see one on your travels. Like black poplar it is dioecious, meaning male and female flowers are found on separate trees. Flowers are catkins (male catkins are red and female catkins are yellow-green), and are pollinated by wind. Fruits: once fertilised, female catkins develop into fluffy cotton-like seeds, which fall in late summer. === Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudicots (unranked): Rosids Order: Malpighiales Family: Salicaceae Genus: Populus Section: Aigeiros
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