The Pea Family, Fabaceae, has a very wide distribution around the world, and it contains a diverse assortment of plants from huge trees to small annuals. Among these is a remarkable species from Australia named Swainsona formosa.
Swainsona formosa has flowers which do not look like others in its genus, and they bear a resemblance to plants from new Zealand in the genus Clianthus. These latter are commonly called Lobster Claws, and Swainsona formosa was originally grouped with them and given the name Clianthus formosus. However, the resemblance proved superficial, and its true relatives turned out to be plants with more typically pea-like flowers in the Australian genus Swainsona, so it was re-named.