Curcuma petiolata

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.

Curcuma petiolata
Illustration from Plantae Asiaticae Rariores
Conservation status
Data Deficient  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Zingiberales
Family:	Zingiberaceae
Genus:	Curcuma
Species:	C. petiolata
Binomial name
Curcuma petiolata Roxb.
Synonyms [2][3]
Curcuma cordifolia Roxb. (nom. nud.) Curcuma cordata Wall.

Inflorescence. Botanical Garden of National Museum of Natural Science, Taiwan.

It is native to Thailand, Myanmar, Laos and Java.^[5]

Average height 2–3 feet (60–90 cm).^[4][6] Flowers cone-shaped, golden-yellow, pink, white or purple.^[4][7][6][8] Blooms June–August.^[4] Fertile bracts green, coma bracts pinkish white.^[4] Leaves glossy with raised veins, 14 inches (36 cm) long, 5 in (13 cm) wide.^[4] Petioles 4–6 in (10–15 cm) long.^[4]

Pests include mealybugs.^[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,^[3] and the nomen nudum Curcuma cordifolia Roxb.^[2]