Golden dragon is hilocereus undatus spp luteocarpus (origin from Yucatan),after that,exist several cultivars (oblong,round,medium and extra large size,longer or smaller bractes).
Prof Mizrahi from Negev University selected more than 3 cultivars by his own.
Bruce (from australia) sold plants to TLM in Philippines and they named this variety as ISIS gold,that means everyone use to re-name a variety for business purpose.Same happened with Apollo variety,and previously with Frenkie's red (orinal name because of frenkie's farm) , and S-serie from Paul Thomson (e.g.: S8 renamed from Linda Nickerson as sugar dragon etc.)
I have 3 varieties of Golden dragon growing in South Italy.