Between Sidalcea and Backhousia, which genus can only be naturally found in Australia?
Sidalcea Sidalcea is a genus (approx. 25 species) of the botanical family Malvaceae. It contains several species of flower known generally as checkerblooms or checkermallows, or prairie mallows in the United Kingdom. They can be annuals or perennials, some rhizomatous. They are native to West and Central North America.
Melaleuca halmaturorum Melaleuca halmaturorum, commonly known as South Australian swamp paperbark, kangaroo honey-myrtle or salt paper-bark is a plant in the myrtle family, Myrtaceae and is endemic to Western Australia, South Australia and Victoria. It is often a tree with an unusual, crooked form, sometimes looking like an enlarged example of bonsai.