This comprehensive illustrated guide documents all species of Hoya (wax flowers) occurring in New Guinea. The guide includes detailed information on 72 taxa (67 species and five subspecies), featuring the most up-to-date account of the genus in this region until a comprehensive revision can be completed. With exceptional photography and detailed botanical descriptions, it serves as both a scientific reference and a practical guide to one of the world’s most biodiverse regions for Hoya species. WHAT THE GUIDE INCLUDES Detailed species descriptions and identification guides for 72 Hoya taxa (67 species and 5 subspecies) Comprehensive botanical illustrations and flower photography Information on endemic species unique to New Guinea (86% endemism rate) Ecological niche distribution across four elevation ranges (0–2600 m) Habitat descriptions and conservation status assessments Detailed fieldwork documentation from remote regions of Papua New Guinea and Indonesian New Guinea Historical context of Hoya research and exploration in New Guinea since 1830 Systematics and phylogenetic relationships within the genus AUTHORS AND PUBLISHER Authors: Nadhanielle Simonsson and Michele Rodda Publisher: Natural History Publications (Borneo) Sdn Bhd Based on: Intensive fieldwork across Papua New Guinea and Indonesian New Guinea Living collections established: Ukarumpa (1500 m highland collection) and Lae (lowland collection) Collection partnerships: Singapore Botanic Gardens and Lae Botanic Garden (plants gifted 2017)