Dendrobium tetragonum is native to Australia and is found in North Queensland and the Cape York Peninsula at elevations of 1500 to 4000 feet. They are small to medium sized plants characterized by their interesting 4 angled stems/canes which are widest at the middle and tapering at either end. They like medium to bright light with intermediate to warm temps. The spider like flowers are fragrant and up to 3 inches across. The old inflorescence can re-bloom several times. These are blooming size seedlings.