N. K. B.  Robson, ?Plant portraits: 337. Hypericum subsessile. Clusiaceae (Guttiferae).?, Curtis's Bot. Mag., vol. 15, pp. 92-95 (1998) - illus., col. illus., 1998.

N.  Robson, ?Plant portraits: 486. Hypericum kouytchense (Clusiaceae).?, Curtis's Bot. Mag., vol. 21, pp. 49-53 (2004) - illus., col. illus., 2004.