Same family as swan plant Gomphocarpus physocarpus and Asclepias sp. milkweed. Araijia is probably too much of a risk to keep as food for an introduced species even though the Monarch butterfly is very pretty. My father used to breed them with swan plant as food. Should we keep Cootamundra wattle as food plant for superb parrot or Pyracantha as food for rosellas and currawongs?