Datura Ferox
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''Datura ferox'', commonly known as long spined thorn apple and fierce thornapple, as well as Angel's-trumpets, is a species of ''
Datura ''Datura'' is a genus of nine species of highly poisonous, vespertine-flowering plants belonging to the nightshade family Solanaceae. They are commonly known as thornapples or jimsonweeds, but are also known as devil's trumpets (not to be conf ...
''. 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 Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the ...
. ''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 ''Datura quercifolia'', commonly known as the oak-leaved thorn-apple, is a small shrub in the genus ''Datura'' that is native to Mexico and the Southwestern United States. It grows equally well in dry and moist soils and requires full sun. It con ...
'', of which it may constitute a subspecies.'Datura (Solanaceae) is a New World Genus' by D.E. Symon and L. Haegi in (page 197 of) ''Solanaceae III: Taxonomy Chemistry Evolution'', Editors J.G. Hawkes, R.N. Lester, M. Nee & N. Estrada, published by The Royal Botanic Gardens Kew, Richmond, Surrey, UK for The Linnean Society of London 1991. . Today it is found in all the warm parts of the earth, where it is regarded as a dangerous pasture weed. ''Datura ferox'' is a stout, upright annual herb high. Its thick stalks often have a red-violet color at the base. All the young shoots are noticeably hairy. The most conspicuous part of the plant is its very wide, undulate, irregularly toothed leaves, which are covered with soft, downy hairs. The yellowish white flowers are funnel-shaped and inconspicuous, and usually do not open completely.


Toxicity

All parts of ''Datura'' plants contain dangerous levels of
tropane alkaloids Tropane alkaloids are a class of bicyclic .2.1alkaloids and secondary metabolites that contain a tropane ring in their chemical structure. Tropane alkaloids occur naturally in many members of the plant family Solanaceae. Certain tropane alkaloi ...
and may be fatal if ingested by humans or other animals, including livestock and pets. In some places it is prohibited to buy, sell or cultivate ''Datura'' plants.


References


External links


Jepson Manual Treatment
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Additional information about ''Datura ferox''
' ferox Flora of China {{Solanales-stub