Morphology of Heliodendron. Plate showing diagnostic features of the new genus Heliodendron A inflorescence of H. thozetianum, Hazelwood Gorge, west of Mackay, Queensland (photo, Stuart Worboys, Australian Tropical Herbarium) B single flower of H. basalticum (BRI AQ0648454) showing hairs on calyx and corolla C mature bud of H. xanthoxylon (BRI AQ0874091) showing hairs on the lobes of the calyx and corolla D seeds of H. basalticum (BRI AQ0746724) E overall pod shape of H. xanthoxylon (BRI AQ0234095) F small rigid stipules of H. basalticum (BRI AQ0673898) G glandular stipule of H. xanthoxylon (BRI AQ0771148). Whole leaf showing overall leaflet size and shape of H H. basalticum (BRI AQ0648454) I H. thozetianum (BRI AQ0611464), and J H. xanthoxylon (BRI AQ0874091). Habit of H. basalticum from K Bladensberg National Park, Queensland (photo, Dale Richter, Queensland Herbarium) L 65 km west south-west of Blackall, Queensland (photo, Murray Fagg, Australian Plant Image Index, Australian National Botanic Gardens).

 
 
  Part of: Brown GK, Aju J, Bayly MJ, Murphy DJ, McLay TGB (2022) Phylogeny and classification of the Australasian and Indomalayan mimosoid legumes Archidendron and Archidendropsis (Leguminosae, subfamily Caesalpinioideae, mimosoid clade). In: Hughes CE, de Queiroz LP, Lewis GP (Eds) Advances in Legume Systematics 14. Classification of Caesalpinioideae Part 1: New generic delimitations. PhytoKeys 205: 299-333. https://doi.org/10.3897/phytokeys.205.79381