Queensland Bottle Tree, Brachychiton rupestris
Brachychiton rupestris or the Queensland Bottle Tree is a member of the Malvaceae family, although it was originally classified in the Sterculiaceae family. This deciduous tree is indigenous to Queensland, Australia and is best known for its distended swollen trunk shaped like a bottle which allows it to thrive in drought conditions, a variety of soil conditions and temperatures. Growing up to 40 feet tall, it features leaves that very from thin and oval shaped to creased and divided. Yellow bell shaped flowers grow in clusters behind dense foliage. Large fibrous crescent shaped fruits grow closest to the interior.
Bottle trees grow best in full sunlight, warm climates and well drained soil with slight acidity. The growth process is slow and the bottle shape is not fully apparent until the fifteenth year.