[ Pyrola rotundifolia variety arenaria Mert. & W.D.J.Koch]
no HD illustration available (m1)
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Pyrola rotundifolia Mert. & W.D.J.Koch var. arenaria [Ericaceae]
J.E. Smith, Engl. Bot., ed. 3, vol. 6 : t. 896 (1866)