Species Descriptions

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Pyrostegia venusta

Taxon

Family

Pyrostegia venusta Baill.

Bignoniaceae

 

Native habitat in Brazil becoming established in Florida
Native habitat in Brazil
Credit: http://www.dierbergertropicais.com.br
P. venusta becoming established in Florida
Credit: Floridata.com

Common names: Flame vine, flame flower, golden shower, orange creeper, orange trumpet creeper, orange trumpet vine

Synonyms: Bignonia venusta Ker-Gawler, Pyrostegia ignea (Vell.) K. Presl

Life form: Liana

 

Biology/Ecology:

Dispersal: Spreads vegetatively by cuttings and suckers. Seeds are dispersed by wind. Distributed by humans for ornamental purposes.

Reproduction: Produces flowers over the course of several months each year, and are pollinated by hummingbirds. Flowers can be self-pollinated or cross-pollinated. Cymes have 1-8 flowers, bright orange corollas between 5 and 7.5 cm long. Lobes are 1 to 1.5 cm long and at length recurved, and anthers protrude. Capsules are 25 to 30 cm long.

Herbivores: Scales, caterpillars and mites

Resistant stages: No information available.

 

Habitat:

Native habitat: Tropical rainforest

Habitat occupied in invaded range: No information available.

Habitat requirements:

Altitude Near sea level.
Light Prefers full sun, but tolerates partial shade.
Temperature No information available.
Annual rainfall High drought tolerance.
Soil Tolerates wide range of soil conditions, but poor tolerance to saline soils.

 

Distribution:

Native to Brazil and Argentina

Introduced range: Invasive in Peru and Australia. Introduced but not considered invasive in Tanzania, southeastern USA, Fiji, Tonga and Solomon Islands.

 

Impacts:

Ecosystem: Becomes dominant at ground level and can invade undisturbed forest. Grows rapidly using its tendrils, smothering trees. Can regrow from its roots if cut down.

Health, social and economic: Produces horizontal stems which hinder human access.

 

Management:

Mechanical: No information available.

Chemical: No information available.

Biological: No information available.

 

References:

Pacific Island Ecosystems at Risk (PIER), 2005. Available from http://www.hear.org/Pier/species/pyrostegia_venusta.htm (Accessed August 2006).

Christman, S., 2004. Pyrostegia venusta. Floridata. Available from http://www.floridata.com/ref/p/pyro_ven.cfm (Accessed August 2006).

Daehler, D., 2005. Pyrostegia venusta Risk Assessment Results. PIER. Available from http://www.hear.org/Pier/wra/pacific/pyrostegia_venusta_htmlwra.htm (Accessed August 2006).

Binggeli, P., 2000. The East Usambaras (Tanzania) - The pearl of Africa. Aliens 10, pp.14-15, ISSG. Available from http://members.lycos.co.uk/woodyplantecology/invasive/aliens.htm (Accessed August 2006).

 

Last updated October 2006

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