Undoubtedly the heaviest orchid in the world, large Tiger Orchid clumps can grow up to two tonnes. Often spotted growing epiphytically on sturdy trees, they have arching sugarcane like stems with strap shaped leaves. Flowering in Penang usually occurs in the months of July to September, with peak flowering in August. Large clumps are a spectacle, they can have several dozen flower spikes with thousands of flowers. Flowers stalks arise from the base of the clump, carrying about 40 blooms, with flowers having a yellow base streaked with irregular brown blotches, resembling tiger stripes.