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Aïe ! Ça pique !
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Pilou et Marino
Pilou et Marino
En botanique, une épine est un piquant issu de la métamorphose d'organes végétatifs, tels que les racines, la tige, les stipules, et le plus souvent les feuilles modifiées qui n'ont pas de rôle photosynthétique mais sont spécialisées dans la défense des plantes contre les herbivores.
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