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 | |
| 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 | |
| Synonyms [2][3] | |
| |

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]
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