long-spined thorn-apple

Datura ferox, commonly known as long spined thorn apple and fierce thornapple, as well as Angel's-trumpets, is a species of Datura. Like all such species, every part of the plant contains deadly toxins that can kill animals (including humans) that ingest it. Its fruit, red-brown when ripe, has unusually long thorns or spikes.

The species was first described in 1756 by Linnaeus. Ferox means "strongly fortified," referring to the fearsome-looking spines on the seed pod. The species was long thought to have originated in southeastern China, but recent work by Symon and Haegi has demonstrated that, like all other Datura species, it is in fact native to the Americas. The species is very close in morphology to Datura quercifolia, of which it may constitute a subspecies. Today it is found in all the warm parts of the earth, where it is regarded as a dangerous pasture weed.