The crown made of a thorny plant that Christ was forced to wear before his Crucifixion, in mocking reference to his alleged status as ‘king of the Jews’, or a representation of this.
A spiny Mediterranean tree, Ziziphus spina-christi.
A spiny spurge, Euphorbia milii, native to Madagascar.
A large starfish with venemous spines, Acanthaster planci.