The closest relationship is with C. geniculata, which occurs somewhat further east in the Ladismith area and extends nearly throughout the Little Karoo. Another relative is C. fimbriata, with which it was at one time confused, but that species is far removed to the east in the Fish River valley scrub and has a distinctive, dome-shaped corolla-canopy with long, pendulous, vibratile cilia. The inwardly directed long hairs from the corolla struts are the special feature of C. connivens.
Perennial herb with rootstock producing a tuft of fusiform roots. Stems slender, glabrous, sparingly branched, climbing. Leaves rudimentary, ± lanceolate. Flowers solitary, extra-axillary at nodes. Sepals lanceolate, ±3 mm long. Corolla 30-40 mm long, glabrous; tube with basal inflation more or less spherical, ±7 mm diam., expanding gradually to mouth and conspicuously veined; lobes united into an incised canopy expanding to 10-12 mm diam., more or less flat-topped, broader than mouth of tube. Corona shortly campanulate at base, with 5 outer lobes suberect and usually deeply bilobuled; inner lobes linear, incumbent-erect.