Erythrina vespertilio

E. vespertilio bark.

E. vespertilio foliage.

Erythrina vespertilio habit

Erythrina vespertilio, commonly known as the bat's wing coral tree or grey corkwood, is a species of flowering plant in the Fabaceae family, native to Australia. This deciduous tree is notable for its distinctive leaf shape, which resembles the wings of a bat, and its vibrant red flowers that attract a variety of pollinators including birds and bees.

Description

Erythrina vespertilio is a small to medium-sized tree that can reach heights of up to 10 meters. Its most striking feature is the trifoliate leaves, which are deeply lobed and resemble the shape of a bat's wings. The leaves are green on the top and greyish underneath, contributing to its common name, grey corkwood. During the spring and summer, the tree produces bright red, coral-like flowers that grow in racemes, followed by seed pods that contain bright red seeds.

Distribution and Habitat

The bat's wing coral tree is found across a wide range of environments in Australia, from Queensland through to the Northern Territory and Western Australia. It thrives in a variety of soil types but is commonly found in sandy soils, on rocky slopes, and in open woodland areas. Its adaptability to different soil types and environments has made it a resilient species across its native range.

Cultivation and Uses

Erythrina vespertilio is cultivated for a variety of purposes. Its unique appearance, especially the distinctive shape of its leaves and its bright red flowers, makes it a popular choice for ornamental gardens. The tree is also used in traditional Aboriginal medicine, and its wood, being lightweight and cork-like, has been utilized for making artifacts and tools.

In cultivation, Erythrina vespertilio prefers well-drained soils and a position in full sun. It is drought-tolerant once established, making it suitable for arid and semi-arid climates. Pruning is recommended to maintain its shape and to encourage flowering.

Ecological Role

The bat's wing coral tree plays a significant role in its ecosystem. Its flowers provide a vital source of nectar for many species of birds, including honeyeaters, and bees, which are important pollinators. The tree also acts as a host plant for several species of butterflies and moths, contributing to biodiversity.

Conservation

Currently, Erythrina vespertilio does not face any immediate threats and is not listed on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. However, like many native species, it could be susceptible to the impacts of habitat destruction, invasive species, and climate change. Conservation efforts are important to ensure its survival and the preservation of its ecological role.