Thorns are leaf modifications in opuntia (a type of cactus) and a stem modification in bougainvillea. So it depends on the type of plant.
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William Knapp Thorn died in 1910.
Staci Thorn's birth name is Lacie Thornton.
The Rose and the Thorn - 1914 was released on: USA: 10 October 1914
As of late Rufus (Fus) Thorn is single. He is 57 years old and his birthday is in late August.
thorpe