Possumwood

Description

Hura crepitans, the sandbox tree, also known as possumwood and jabillo, is an evergreen tree of the spurge family (Euphorbiaceae), native to tropical regions of North and South America including the Amazon rainforest. It is also present in parts of Tanzania, where it is considered an invasive species. It can be recognized by its smooth brown bark covered in many dark, pointed spines which have led to its being nicknamed monkey no-climb. Because its fruit explodes when ripe, it has also received the colloquial nickname the dynamite tree. The sandbox tree can grow to 60 metres (200 ft), and its large ovate leaves grow to 60 cm (2 ft) wide. They are monoecious, with red, un-petaled flowers. Male flowers grow on long spikes, while female flowers grow alone in axils. The sandbox tree's fruiting bodies are large capsules which can explode when ripe, splitting into segments and launching seeds at 70 m/s (250 km/h; 160 mph). One source states that ripe capsules catapult their seeds as far as 100 m (330 ft). Another source states that seeds are thrown as far as 45 m (150 ft) from a tree, averaging about 30 m (100 ft). Its fruits are pumpkin-shaped capsules, 3–5 cm (1–2 in) long, 5–8 cm (2–3 in) diameter, with 16 carpels arranged radially. Its seeds are flattened and about 2 cm (3⁄4 in) diameter. This tree prefers wet soil, and partial shade or partial to full sun. It is often cultivated for shade.