L'ortie, Urtica dioica, TS, souches section vitrail, fond clair photomicrographie

• Contributeur: Scenics & Science / Alamy Banque D'Images
• ID de l’image: EA9AAT
• Taille du fichier: 46,6 MB (2,8 MB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 4353 x 3744 px | 36,9 x 31,7 cm | 14,5 x 12,5 inches | 300dpi
• Date de la prise de vue: 30 octobre 2014

Informations supplémentaires

Urtica dioica, often called common nettle or stinging nettle (although not all plants of this species sting), is a herbaceous perennial flowering plant, native to Europe, Asia, northern Africa, and North America, and is the best-known member of the nettle genus Urtica. The species is divided into six subspecies, five of which have many hollow stinging hairs called trichomes on the leaves and stems, which act like hypodermic needles, injecting histamine and other chemicals that produce a stinging sensation when contacted by humans and other animals. The plant has a long history of use as a medicine, as a food source and as a source of fibre.

Recherche dans la banque de photos par tags

• brightfield photomicrograph
• douleur
• éruption cutanée
• histamin
• leaaf
• quai
• stained section
• tige ts
• trichomes
• urtica dioica