Cryptostegia grandiflora Roxb. ex R.Br.
|English Name:||Palay Rubbervine|
|Synonym:||Cryptostegia grandiflora var. tulearensis Costantin & Gallaud|
|Common Name:||Purple allamandra, Rubbervine|
|Flowering & Fruiting Period:||Throughout the year|
|Distribution:||Native of Madagascar, widely planted in the tropics|
|Uses:||The plant can be pruned and grown as a hedge. Latex obtained from the stems can be used to make rubber. It is equal in quality to the latex obtained from the rubber tree, Hevea sp.|
|Key Characteristics:||Evergreen suberect or climbing shrubs. Leaves opposite, exstipulate, subcoriaceous, elliptic, obtuse at apex, subacute at base. Flowers whitish, tinged with light purple, showy, in few-flowered, terminal, dichotomous cymes. Calyx divided nearly to base, ovate, acute at apex, margins recurved, glabrous within near base, otherwise puberulent. Corolla, subcampanulate at throat; lobes obliquely-oblong, acute; anthers sagittate, adnate to the stigma, connective produced into acute processes. Ovary glabrous, ovules many; style short, stout, glabrous, the apex dome-shaped. Follicles divaricate, woody, 3-angled, glabrous; seeds ovate, glabrous.|