Vernacular
  • Caoutchouc de Maurice,
  • India rubber vine,
  • Liane de gatope,
  • Palay rubber vine,
  • Purple allamanda,
  • rubberklimop,
  • Rubber vine
Details
Eppo_code

CVRGR

Family

Apocynaceae

Species

Cryptostegia grandiflora Roxb. ex R.Br.

Meaning_of_the_name
Global_description

Climbing plant which may cover trees more than 15 m high, or a creeper in open places, growing as a bush. The stems produce a white latex. Leaves opposite, thick, elliptic to ovate, dark green, shiny 6 to 10 cm long and 2.5 to 5 cm wide. Large flowers, with five petals, pink outside and white inside, 5 cm long and wide. The fruit is a large ellipsoid capsule, brown, 10 to 15 cm long, often horizontally opposed pairs. Each capsule contains numerous seeds adorned with tufts of long silky white hairs.

Similar_species
Cotyledons
First_leaves
Habit
Underground_system
Stem
Leaves
Inflorescence
Flowers
Fruits
Seeds
Biology

This perennial vine is very aggressive. Its many seeds are dispersed long distances by wind and water and germinate in the early rainy season. The plant can grow stems 4 to 5 m in the first year. It flowers early in the rainy season, fruiting occurs until the late dry season and cool season. It loses its leaves in the dry season. The life of the vine exceed 80 years. Very toxic to herbivores, it is not palatable but 10 g of chopped leaves mixed with hay kills a horse in a few days.

Ecology
Origine

Plant native to Madagascar, it was broadcast by man as an ornamental in most tropical and subtropical regions.

World_distribution

It is a major weed in Australia (Queensland), and New Caledonia.

South_african_distribution
Knp_distribution
Use
Global_weediness
South_african_weediness
Knp_weediness
Global_control

At the seedling stage it can destroy by spraying herbicide, thoroughly wetting the foliage and stems: 1) 2,4-D at 0.2% (20 ml per 10 liters of water ) after slashing, 2) picloram + 2,4-D. The action of the herbicide is very long (12 months), do not perform mechanical intervention or other treatment during the year following the first treatment. For adults plants it is recommanded to brush on wounds and cutting the base of the stem, immediately after cutting, with triclopyr or peeled stem to a height of 50 cm from the ground. Several biocontrol agents are proving effective in Queensland with a leaf rust (Maravalia cryptostegiae). Recent studies in Australia have shown that the seed bank may run in a year because of the massive germination. In this case, we can hope to eradicate the weed in a relatively short time, provided to prevent the plant from producing seeds.

Control_knp
References

Blanfort V, Desmoulins F, Prosperi J, Le Bourgeois T, Guiglion R, Grard P (2010) AdvenPaC V.1.0 : Adventices et plantes à conflit d'intérêt des Pâturages de Nouvelle-Calédonie. IAC, Cirad, Montpellier, France, http://idao.cirad.fr/applications

Web_links

http://idao.cirad.fr/SpecieSheet?sheet=advenpac/especes/c/cvrgr/cvrgr_fr.html

Vernacular Country Language Source
rubberklimop Afrikaans Bromilow C. 2010. Problem plants and alien weeds of South Africa. p.48
Purple allamanda English Catalogue of Life
Caoutchouc de Maurice French EPPO
India rubber vine English Catalogue of Life
Rubber vine English Catalogue of Life
Palay rubber vine English EPPO
Liane de gatope Localités_179 French Catalogue of Life
Map