Stiffly erect, densely-leafy unusual shrublet with velvety branches. Leaves are stiff and narrow, dark green to rust; tubular, silky flowers are red to orange with black lobes, tipped with tufts of white hairs; anthers are partially fused to the corolla.

After: A.J. Retzius (1742-1821), Swedish botanist and member of the Royal Swedish Academy of Sciences.