Caladenia Cairnsiana is a beautiful orchid species found in Australia. It is commonly known as the Cairns Spider Orchid, due to its spider-like shape. This rare and breathtaking flower has various synonyms, including Pterostylis cairnsiana, Arachnorchis cairnsiana, and Rushforthia cairnsiana. The plant has a unique fleshy tuber, and it can grow up to 20cm tall. The flowers are mainly white with red markings, and they bloom from August to October. Cairns Spider Orchid is a threatened species due to human activities, and it is protected under Australian law. It is a delightful sight to behold, and its synonyms are equally fascinating.