Grammatophyllum speciosum, also called giant orchid, tiger orchid, sugar cane orchid or queen of the orchids, is a species of orchid native to Indonesia. It is listed as the world's tallest orchid, with specimens recorded up to 7.62 metres in height.
Grammatophyllum speciosum is an epiphytic and occasionally a lithophytic plant, forming spectacular root bundles. Its cylindric pseudobulbs can grow to a length of 2.5 m. It can grow to gigantic clusters weighing from several hundred kilograms to more than one ton. It is native to New Guinea, Indonesia, Malaysia and the Philippines, growing in crotches of large trees on exposed areas of the lowland tropical rainforest. These plants are usually rare in cultivation due to their spacial requirements.