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(var.) Taxonomic rank (varietas) grouping variants of a species with relatively minor differentiation in a few characters but occurring as recognisable populations. Often loosely used for rare minor variants more usefully ranked as forms.


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This variety, known as the coral-bark maple, is chiefly grown for its beautiful coral-red young stems, which retain their brilliance throughout the winter, but is almost as valuable for its prettily cut light-green leaves, which turn in autumn to a soft yellowish orange. The habit is erect and it will in time make a tall shrub. At Caerhays Castle, Cornwall, there is a fine group, the largest 34 × 1{1/2} ft, in which even the old bark retains a pinkish tinge; normally, as the bark ages, and the summer growths become shorter, the winter colouring becomes less apparent, but could doubtless be renewed by heavy pruning. Mr Graham Thomas tells us that ‘Senkaki’ was introduced to England by T. H. Lowinsky and put into commerce by the Sunningdale Nurseries around 1920. It may, however, have been introduced independently to Ireland by Smith’s Daisy Hill Nursery, Newry, Co. Down. Also known as ‘Sango-kaku’ and A. p. cinnabarinum.


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