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- Thorns,_spines,_and_prickles abstract "In plant morphology, thorns, spines, prickles, and in general spinose structures (as spinose teeth, spinose apical process) are all hard structures with sharp, stiff, ends, generally with the same function of mechanically deterring herbivory. In common language the terms are used more or less interchangeably, but in botanical terms, thorns are derived from shoots (so they can be branched or not, they can have leaves or not, and they arise from a bud), spines are derived from leaves (the entire leaf or some part of the leaf that has vascular bundles inside, like the petiole or a stipule), and prickles are derived from the epidermis (so they can be found anywhere on the plant, and don't have vascular bundles inside so they can be removed more easily and cleanly than thorns and spines). Leaf margins also may have teeth and if those teeth are sharp they are called spinose teeth, on a spinose leaf margin (some authors consider them a kind of spine). On a leaf apex, if there is an apical process (generally an extension of the midvein), and if it is specially sharp, stiff, and spinelike, it can be called spinose or pungent apical process (again, some authors call them a kind of spine) When epidermis is covered with very long, stiff trichomes (more correctly called bristles in this case, for some authors a kind of prickle) is called hispid vestiture, if is covered with stinging trichomes it can be called urent vestiture. Thorn images. Types of spines. Cacti can have a particular kind of spine (modified leaf) very small and deciduous, with numerous retrorse barbs along its length, this particular spine is called glochidium (plural glochidia or glochids), as found in areoles of Opuntia. Spines can be petiolar spines as those of Foquieria, leaflet spines as in Phoenix, stipular spines as in Euphorbia, all those are examples of spines developing from a part of a leaf containing the petiole, midrib, or a secondary vein.Spine images. Prickle images. Spinose teeth, spinose apical process, stiff trichome, stinging trichome.".
- Thorns,_spines,_and_prickles wikiPageID "25725334".
- Thorns,_spines,_and_prickles wikiPageRevisionID "603044082".
- Thorns,_spines,_and_prickles hasPhotoCollection Thorns,_spines,_and_prickles.
- Thorns,_spines,_and_prickles subject Category:Biological_defense_mechanisms.
- Thorns,_spines,_and_prickles subject Category:Biological_evolution.
- Thorns,_spines,_and_prickles subject Category:Ecology.
- Thorns,_spines,_and_prickles subject Category:Plant_morphology.
- Thorns,_spines,_and_prickles comment "In plant morphology, thorns, spines, prickles, and in general spinose structures (as spinose teeth, spinose apical process) are all hard structures with sharp, stiff, ends, generally with the same function of mechanically deterring herbivory.".
- Thorns,_spines,_and_prickles label "Cierń".
- Thorns,_spines,_and_prickles label "Doorn (plant)".
- Thorns,_spines,_and_prickles label "Dorn (Botanik)".
- Thorns,_spines,_and_prickles label "Espina (botánica)".
- Thorns,_spines,_and_prickles label "Espinho (botânica)".
- Thorns,_spines,_and_prickles label "Spina".
- Thorns,_spines,_and_prickles label "Thorns, spines, and prickles".
- Thorns,_spines,_and_prickles label "Épine".
- Thorns,_spines,_and_prickles label "Колючки".
- Thorns,_spines,_and_prickles label "刺".
- Thorns,_spines,_and_prickles label "棘 (植物)".
- Thorns,_spines,_and_prickles sameAs Osten_(botanika).
- Thorns,_spines,_and_prickles sameAs Dorn_(Botanik).
- Thorns,_spines,_and_prickles sameAs Αγκάθι.
- Thorns,_spines,_and_prickles sameAs Espina_(botánica).
- Thorns,_spines,_and_prickles sameAs Arantza_(botanika).
- Thorns,_spines,_and_prickles sameAs Épine.
- Thorns,_spines,_and_prickles sameAs Duri.
- Thorns,_spines,_and_prickles sameAs Spina.
- Thorns,_spines,_and_prickles sameAs 棘_(植物).
- Thorns,_spines,_and_prickles sameAs Doorn_(plant).
- Thorns,_spines,_and_prickles sameAs Cierń.
- Thorns,_spines,_and_prickles sameAs Espinho_(botânica).
- Thorns,_spines,_and_prickles sameAs m.0403mwp.
- Thorns,_spines,_and_prickles sameAs Q201851.
- Thorns,_spines,_and_prickles sameAs Q201851.
- Thorns,_spines,_and_prickles wasDerivedFrom Thorns,_spines,_and_prickles?oldid=603044082.
- Thorns,_spines,_and_prickles isPrimaryTopicOf Thorns,_spines,_and_prickles.