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Cryptostegia grandiflora

Botanic Family

Apocynaceae

Author

Roxburgh ex R. Brown

Propagation

C.S.

Cultivated

C.

Hardiness Zone

Z. 10

Common Names

• Palay Rubber Vine
• India Rubber Vine
• Lombira Rubber Vine
• Rubber Vine
• Purple Allamanda
• Lombiry
• Panay Rubber Vine
• Caoutschouc (Haiti)

Geographical Habitats

• S. & SW. Madagascar

Natural Habitats

• Coastal & swamp margins

Flowering Times

• All year (Madagascar)

Fruiting Times

• Jul-Apr (Madagascar)

Lofty glabrous woody twiner or scandent shrub to 10m, with lenticellate stems to 30m. Glabrous coriaceous leaves reticulated with brown beneath to 100mm x 47mm. Terminal corymbs or dichasial cymes of 90mm red-purple or pale mauve flowers white inside, (a white flowered form is known), 5-parted calyx, sepals to 15mm long, corolla to 60mm x 80mm with 5 lobes to 20mm long, twisted corolla tube 20mm long. Keeled paired fruit follicles green shading brown to 154mm long x 40mm.

Poisonous, known weed

Environmental, material, medicinal, poisons

Further References

• Menninger 1970
• Bailey 1976
• Herklots 1976
• van der Spuy 1976
• Jones & Gray 1977
• P & R 1997
• Mobot
• Llamas 2003
• JDH
• WFO
• de Candolle
• G. Don
• VOPR
• Botanicus
• SAFIO
• Kew
• APS