Template:Taxobox Hura crepitans, the sandbox tree,<ref>Template:GRIN</ref> 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 recognized by the many dark, pointed spines and smooth brown bark. These spines have caused it to be called Monkey no-climb.
Sandbox trees can grow to Template:Convert,<ref name=Swain>Template:Cite journal</ref> and the large ovate leaves grow to two feet wide. They are monoecious. The red flowers have no petals. Male flowers grow on long spikes; female flowers are solitary in axils. The fruit is a large capsule with explosive dehiscence; seeds can be launched at Template:Convert.<ref>Template:Cite web</ref> One source states that ripe capsules catapult their seeds as far as Template:Convert.<ref>Template:Cite book</ref> Another source states that seeds are thrown as far as Template:Convert from a tree, with a mode of about Template:Convert.<ref name=Swain/> It has also been known as the Dynamite tree, so named for the explosive sound of the ripe fruit as it splits into segments.
Its fruits are pumpkin-shaped capsules, 1.4–2 inches (3–5 cm) long, 2–3.2 inches (5–8 cm) diameter, with 16 carpels arranged radially. Its seeds are flattened and about 0.8 inches (2 cm) diameter. In parts of Tanzania in Africa it has become invasive.<ref>Template:Cite web</ref>
This tree prefers wet soil, and partial shade or partial sun to full sun. It is often cultivated for shade.
Fishermen have been said to use the milky, caustic sap from this tree to poison fish.<ref>Handbook of So. American Indians, vol 3, p. 7</ref> The Caribs made arrow poison from its sap.<ref>Template:Cite book</ref> The wood is used for furniture under the name "hura". Before more modern forms of pens were invented, the trees' unripe seed capsules were sawn in half to make decorative pen sandboxes (also called pounce pots), hence the name 'sandbox tree'.
- Center for Wood Anatomy Research, details about the wood of the Sandbox tree
- Template:Pt icon University of São Paulo: Hura crepitans photos
- www.maya-ethnobotany.org seedpod explosion video