This article is about the South American plant commonly called orange trumpet vine. For the North American plant commonly called trumpet vine, see Campsis radicans.
Pyrostegia venusta, also commonly known as flamevine[2] or orange trumpet vine,[3] is a plant species of the genus Pyrostegia of the family Bignoniaceae originally native to southern Brazil, Bolivia, northeastern Argentina and Paraguay; today, it is also a widely cultivated garden species.[3][4]
It is an evergreen or semi-deciduous, vigorously-growing climber, capable of reaching 5 m in height. The foliage is made up of opposite, pinnate leaves with two or three, 4 to 8 cm leaflets, and a 3-branched tendril, which all arise together from the end of the leaf petiole.[5]
The orange flowers, which appear from winter to spring, are 5 to 9 cm long and densely clustered. They are pollinated by hummingbirds. The fruits are smooth, 3 cm long brown capsules.
Cultivation
The plant is sensitive to cold winds and prefers sunny, sheltered locations. Its frost hardinessUSDA zones are 9 to 11. It is resistant to soil salinity.
The plant has forked tendrils, which will cling to any rough surface, including brick walls. It can be grown from semi-hardwood cuttings taken in summer, autumn or winter.
The species was first described by John Miers in 1863.
Etymology
Venusta means 'beautiful', 'charming', or 'graceful'.[7] "Pyrostegia" is from the Greek pyros 'fire', relating to the colour of the flowers and the shape of the upper lip, and stegia 'covering'.[citation needed] When the flowers cover a building, it may appear to be on fire.
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