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The original item was published from 10/6/2011 8:46:00 AM to 10/15/2011 12:05:01 AM.

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Engineering and Public Works News

Posted on: September 20, 2011

[ARCHIVED] Centennial Park Tree Removal

Loki Tree Service will be doing the removal of the trees beginning October 3.

We request the public’s cooperation in staying clear of the work area while work is underway. Street closures will be in place while the work is taking place.
Information regarding the species being removed:
Populus nigra, the black poplar, is a species of poplar in the cottonwood (Aegiros) section of the genus Populus, native to Europe, southwest and central Asia, and northwest Africa.[1]
Burrs and normal bark on a black poplar tree (subspecies betulifolia) in Ayrshire, Scotland.
It is a medium-sized to large deciduous tree, reaching 20-30 m (rarely 40 m) tall, with a trunk up to 1.5 m diameter. The leaves are diamond-shaped to triangular, 5-8 cm long and 6-8 cm broad, green on both surfaces.[2] The species is dioecious (male and female flowers on different plants), with flowers in catkins and pollination by wind.
A fastigiate black poplar cultivar of the Plantierensis Group, in Hungary
There are three subspecies, some botanists distinguishing a fourth:[1][2]
Populus nigra subsp. nigra. Central and eastern Europe. Leaves and shoots glabrous (hairless); bark grey-brown, thick and furrowed.
Populus nigra subsp. betulifolia (Pursh) W.Wettst. North-west Europe (France, Great Britain, Ireland). Leaf veins and shoots finely downy; bark grey-brown, thick and furrowed, often with heavy burrs, trunk usually heavily leaning.
Populus nigra subsp. caudina (Ten.) Bugala. Mediterranean region, also southwest Asia if var. afghanica not distinguished.
Populus nigra var. afghanica Aitch. & Hemsl. (syn. P. nigra var. thevestina (Dode) Bean). Southwest Asia; treated as a cultivar of P. nigra by many botanists,[3] and as a distinct species P. afghanica by others;[4] bark smooth, nearly white; leaves and shoots as subsp. caudina (see also cultivars, below).

The subspecies betulifolia is one of the rarest trees in Great Britain and Ireland,[5][6] with only about 7,000 trees known, of which only about 600 have been confirmed as female.[7]
Poplar seed tufts
Several cultivars have also been selected, these being propagated readily by cuttings:
'Italica'. The true Lombardy poplar, selected in Lombardy, northern Italy, in the 17th century. The growth is fastigiate, with a very narrow crown. Coming from the Mediterranean region, it is adapted to hot, dry summers and grows poorly in humid conditions, being short-lived due to fungal diseases. It is a male clone.[8]

A widely selected species chosen by golf architects in the 1960's it soon became apparent that the Poplar's very invasive roots destroyed land drainage systems, decades later the same courses were removing Poplars stands wholesale. At around 40 to 50 years this short lived variety starts shedding branches and are very liable to be blown over in high winds, each successive tree lost exposing neighbouring trees creating a domino effect.
Please contact Laurel Corrigan, Parks Foreman at 837-2001 if you have any questions or concerns.

Thank you
City of Revelstoke
Parks Department

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