Which of the two plants, Macropidia or Hippophae, is the sole species of its kind?
Macropidia Macropidia fuliginosa, the sole species of genus Macropidia, is a perennial rhizomatous flowering plant. Commonly known as the black kangaroo paw, it is endemic to Southwest Australia, specifically from Perth to Geraldton in the north of the region.
Paramachaerium Paramachaerium is a genus of legume in the Fabaceae family, and was recently assigned to the informal monophyletic "Pterocarpus" clade within the Dalbergieae.