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'Corynabutilon ochsenii' from the website Trees and Shrubs Online (treesandshrubsonline.
Treated by Bean under the genus Abutilon. See both genus entries for a note on the taxonomy.
This near ally of C. vitifolium was introduced c. 1957 from Chile by E. B. Anderson. The parent plant grew in the garden of the late Sra Margharita Manns and was collected by her in Valdivia province. It differs from C. vitifolium in its much less hairy stems, leaves and peduncles and its smaller, deeper-coloured flowers borne singly or in pairs. The greener leaves and violet-blue flowers render it very distinct from the older species. It is not yet fully tested in cultivation, but judging from its performance in the winters of 1961–3 it is as hardy or even hardier. It is certainly a vigorous grower, likely to reach a height of at least 12 ft on a wall. It is figured in Bot. Mag., n.s., t. 445.