page_title: Thorns, spines, and prickles
section_title: Definitions and technical distinctions
hierarchical_section_title: Thorns, spines, and prickles / Definitions and technical distinctions
caption_attribution_description: Español: Diferencia anatómica entre una espina (A) y un aguijón (B). En la espina, los tejidos vascualres, esquematizados en rojo, continuan a los del tallo. El aguijón, en cambio, está formado por tejidos corticales, sin participación de los tejidos vasculares, por eso puede arrancarse con facilidad.
context_page_description: In plant morphology, thorns, spines, and prickles, and in general spinose structures, are hard, rigid extensions or modifications of leaves, roots, stems or buds with sharp, stiff ends, and generally serve the same function: physically deterring animals from eating the plant material.
context_section_description: Pointing or spinose processes can broadly be divided by the presence of vascular tissue: thorns and spines are derived from shoots and leaves respectively, and have vascular bundles inside, whereas prickles (like rose prickles) do not have vascular bundles inside, so that they can be removed more easily and cleanly than thorns and spines.
caption: (A) Thorn or spine
  (B) Prickle
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