Curcuma petiolata (also known as jewel of Thailand,[3] Siam tulip, hidden ginger,[3] pastel hidden ginger,[3] hidden lily[3] or queen lily[4]) is a plant of the Zingiberaceae or ginger family.

[4][6] Flowers cone-shaped, golden-yellow, pink, white or purple.

[8] It is widely cultivated as an ornamental plant for its beautiful flowers.

[6] 'Emperor' selection is grown for its attractive variegated foliage as well as its flowers.

[4][7] Synonyms include Curcuma cordata Wall.