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Gymnosporia heterophylla, the common spike-thorn, is a small, hardy, deciduous African tree up to 5m tall, occurring in rocky places with a wide distribution from Ethiopia, the Sudan and the Congo, south to the Cape Province and west to Angola and Namibia, as well as the neighbouring islands of Madagascar and Saint Helena, with a closely related species from Mauritius.
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
Putterlickia, variously called spikethorns, false spike thorns, mock spike thorns and bastard spike thorns, are a genus of flowering plants in the staff vine and bittersweet family Celastraceae, native to South Africa, Eswatini and Mozambique. Endophytic bacteria in their roots produce maytansine.
For example, the article says that spines are derived from leaves, but none of the four sources I listed at User:Peter coxhead/Work page#Spines vs. thorns restrict the term to leaf-derived structures. Also, the use of spinosus as an epithet is relevant; many plants with such names have what the article calls "thorns", e.g. Prunus spinosa.
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.
Thorn (organization), an anti-human-trafficking organization Thorn Electrical Industries, an electrical engineering business; Thorn EMI, a major British company involved in consumer electronics, music, defence and retail
The Serbian Wikipedia (Serbian: Википедија на српском језику, Vikipedija na srpskom jeziku) is the Serbian-language version of the free online encyclopedia Wikipedia. Created on 16 February 2003, it reached its 100,000th article on 20 November 2009 before getting to another milestone with the 200,000th article on 6 July ...
Flowers occur as clusters of off-white or cream-coloured terminal spikes which are fragrant and bloom during spring and summer. [1] The timber, resembling that of Acacia melanoxylon , often has heart rot , but when sound is of good quality and handsomely streaked in black, dark brown, purple and cream, with markedly contrasting off-white sapwood.