Allamanda blanchetii

Allamanda blanchetii (purple allamanda, violet allamanda; Pilaghanti in Sanskrit syn. Allamanda violacea) is a species of perennial flowering plant in the family Apocynaceae native to Brazil.^[1][2] Cultivated as an ornamental plant, it grows in full sun in USDA Zones 9b through 11^[3] including central and south Florida, southernmost Texas, and coastal California. This plant's purple, bell-shaped blooms are about 3" across.^[4] It is also called red bell. From the stem, fiber can be extracted which is very strong and silky white after chemical treatment.^[5]

Allamanda blanchetii flowers and foliage in Jharkhand, India.

Allamanda blanchetii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Apocynaceae
Genus:	Allamanda
Species:	A. blanchetii
Binomial name
Allamanda blanchetii A.DC.