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Convolvulus erinaceus Ldb. 
An undershrub with very long roots and preferring 
somewhat stationary sandy soil. It attains a height of about 
Fig. 52. Convolvulus erinaceus. To the left a leaf-bearing plant (June). To 
the right a specimen which has shed its leaves. (July). 
40 centimetres, but according to AITCHISON it may reach the 
height of 1 metre (2—3 feet). The year-shoots are stiff, 
strongly branched, geniculate at the nodes and the branches 
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