Buchnera cernua Linnaeus, Mantissa Plantarum Altera: 251. 1771.

"Habitat in Cap. b. spei montibus." RCN: 4573.

Lectotype (Moldenke in Repert. Spec. Nov. Regni Veg. 45: 314. 1938): Tulbagh 100, Herb. Linn. No. 790.1 (LINN) .

Current name: Plexipus cernuus (L.) R. Fern. ( Verbenaceae).