English: A thorn of Gymnosporia buxifolia showing leaves that demonstrate that the thorn is a derived branch. The plant is a shrub or small tree in the family Celastraceae.
This species is called the "Common Spike-thorn"; the dangerously sharp, tough, and rigid thorns often exceed 100 mm in length. This photograph was taken near the town of Uniondale in South Africa.
Google Earth location -33.777, 23.087
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{{Information |Description={{en|1=A thorn of Gymnosporia buxifolia showing leaves that demonstrate that the thorn is a derived branch. The plant is a shrub or small tree in the family Celastraceae. This species is called the "Common Spike-thorn"; the dang
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