Different pea flowers are coming into bloom. These purple ones are hardenbergia and you will see quite different from the purple flowers of Hovea and native indigo even though they are all pea-like. And in among the grass I found in quite a few places this little vine with yellow/red pea flowers. Again quite different from yellow/red pea flowers shrub . I wonder why so many of Australia's native plants have pea flowers? I've answered my own question below. Sub-family Faboideae - those members of the Fabaceae which have the typical "pea" flowers ... In Australia, there are about 140 genera and 1,100 species in the sub-family Faboideae. They are found in every state and territory of Australia, from coastal cliffs to alpine areas, from the tropics to the arid inland. Many of Australia's peas are representatives of genera found elsewhere in the world (eg indigo ( Indigofera ), coral trees ( Erythrina ) and rattlepods ( Crotalaria ). However, ther...