Solitaire palm, Kandy Botanical Garden, Sri Lanka

''Ptychosperma elegans'', also known as the "Solitaire palm" and the "Alexander palm," is a very slender palm endemic to the Northern Territory and eastern Queensland in Australia. It has the common names of Alexander palm, Solitaire palm, cabbage palm, and elegant palm.

The palm's native habitats are coastal rainforests in northern Australia.