Ptychosema pusillum
  Ptychosema pusillum Benth. ex Lindl.
  
    Lindley, J. (1839) A Sketch of the Vegetation of the Swan River
    Colony. Edward's Botanical Register Appendix: xvi.
  
  
    TYPE:
      (not cited).
  
  
    Lee, A.T. (1973) A new genus of Papilionaceae and related
    Australian genera. Contributions from the New South Wales
    National Herbarium 4(7): 412-430 (415-416)
  
  
    Threatened Species and Communities, Biodiversity Group,
    Environment Australia (1998), Schedules 1, 2 & 3 (24
    February 1998). Endangered Species Protection Act 1992