Fl. 93mm wide; perianth segments 35mm long, broadly ovate to obovate, blunt, mucronate, spreading, plane or with margins incurved, smooth and of heavy substance, overlapping half; the inner segments narrower, shouldered at base; corona 34mm long, funnel-shaped, smooth, mouth flared, wavy and lobed, with rim crenate and notched.

Named after a back road registrant takes to the post office and bank to avoid a “white-knuckle” expressway ride!