Date de publication : Edwards's Bot. Reg., 27: sub t. 1. 1841 [01/01/1841, fide planche datée].

Description originale : Isochilus grandiflorum ; vaginis imbricatis, foliis distichis lineari-lanceolatis acutissimis, floribus solitariis axillaribus, bracteâ acuminatâ sepalorum dimidio aequali, sepalis acuminatissimis, petalis duplo brevioribus conformibus, labello lineari-oblongo utrinque emarginato basi nudo, columnâ petalis parum breviore. - This is very like I. graminifolium, but the flowers are four times as large, independently of the distinctions included in the foregoing character. - Good specimens exist in the Royal Herbarium of Munich, collected in Peru by Hœnke; but I find nothing like it in the Reliquiae Hœnkeanae.

Orthographe : Publié comme "grandiflorum" orth. var.