Pajanelia
Pajanelia, sometimes known in English as tender wild jack or pajanelia, in Malayalam as azhantha or pajneli, in Kannada as alangi and in Tamil as aranthal, is a monotypic genus of evergreen or briefly deciduous flowering tree in the family Bignoniaceae which contains a single species, Pajanelia longifolia.
It can be most commonly found within the deciduous and semi-evergreen mountainous rainforests of India, Sri Lanka, Myanmar, Thailand, Peninsular Malaysia and the islands of Sumatra, Natuna, and Borneo. It is often spotted alongside rivers or within forests adjacent to the coastand up to 1000m above sea level, and is occasionally found lonesome in the plains.
Etymology
The genus epithet Pajanelia stems from a Malayalam name for the plant, pajaneli, recorded from Dutch Malabar in the 1670s. The species epithet longifolia is of Latin origin and means long leaves.Description
Pajanelia grows as a small to medium sized tree up to 30 metres tall, it has an upright habit and few side branches. The trunk is occasionally buttressed and up to in diameter. The heartwood is white-brown coloured, and the pale grey outer bark is scaly and linearly lenticellate.Its leaves are compound, ovate and chartaceous, they are imparipinnate and glabrous with 7-17 leaflets. They may be up to long, with the apex being acuminate. The rachis is triangular and glabrous. The petiolule is long and the midrib is flat or slightly canaliculate. The tertiary nerves are broadly reticulate.
Flower and fruit
Between January and June inflorescent panicles of purple flowers with yellow interiors are produced. They are silken along their margins and smell of soap. The flowers bloom at night before fading at dawn.The brown, compressed and glabrous fruit is of capsule shape, long and wide. It is winged on both margins. The seeds are housed within two valves and are flat, chartaceous and winged on both sides.