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	Plant list: Winter bark and stems Upright trunks of unusual bark and vertical coloured stems make a great contrast with bushy evergreen shapes.
	Corylus avellana ‘Contorta’ Corkscrew hazel Tree Hardy Yellow catkins Dark green 4.5m to 6m x 4.5m to 6m (14.8ft to 20ft x 14.8ft to 20ft) Deciduous bushy shrub with bizarrely twisted shoots and branches. The broad and sick-looking leaves have autumn colour. In late winter the bare branches are covered with pale yellow drooping catkins.
	Related plant lists: Spring-flowering bulbs Trees for spring blossom Spring-flowering shrubs Summer bedding plants Summer perennials Summer roses Autumn foliage Autumn berries and fruit Autumn seed-heads Winter evergreens Winter bark and stems Winter flowers