{"id":12698,"date":"2020-11-10T10:08:12","date_gmt":"2020-11-10T10:08:12","guid":{"rendered":"https:\/\/www.northafricatrees.org\/species\/rhamnus-alpina-l-3\/"},"modified":"2026-07-24T11:09:54","modified_gmt":"2026-07-24T11:09:54","slug":"rhamnus-alpina-l-3","status":"publish","type":"species","link":"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/rhamnus-alpina-l-3\/","title":{"rendered":"Rhamnus alpina L."},"content":{"rendered":"

Arbuste caducifoli\u00e9, g\u00e9n\u00e9ralement dio\u00efque, pr\u00e9sentant parfois des fleurs hermaphrodites, atteignant 3(4) m de haut, rameux, g\u00e9n\u00e9ralement dress\u00e9. Tronc droit \u2013lorsqu\u2019il croit en bon sols\u2013 ou tortueux, \u00e0 \u00e9corce lisse, peu ou pas fendill\u00e9e, brun-gris\u00e2tre. Rameaux brun-rouge\u00e2tre, les plus jeunes verts, pubescents. Feuilles (2-10 \u00d7 0,9-4 cm) alternes, ovales-lanc\u00e9ol\u00e9es, ovales-oblongues ou obovales-oblongues, g\u00e9n\u00e9ralement aigu\u00ebs, att\u00e9nu\u00e9es ou arrondies \u00e0 la base, parfois cordiformes, \u00e0 bord irr\u00e9guli\u00e8rement cr\u00e9nel\u00e9-dent\u00e9, \u00e0 7-15 paires de nervures lat\u00e9rales, presque parall\u00e8les, glabres et de couleur vert vif sur l\u2019endroit, \u00e0 tomentum court, espac\u00e9 et plus claires sur l\u2019envers. P\u00e9tiole bien d\u00e9velopp\u00e9 (0,6-1,5 cm), \u00e0 stipules promptement caduques. Inflorescences en petits fascicules axillaires. Fleurs verd\u00e2tre-jaun\u00e2tre, longuement p\u00e9doncul\u00e9es, celles de chaque sexe croissant g\u00e9n\u00e9ralement sur des plantes diff\u00e9rentes ; calice campanul\u00e9, \u00e0 4 s\u00e9pales triangulaires, 4 p\u00e9tales plus courts, verd\u00e2tre-jaun\u00e2tre, alternant avec les s\u00e9pales. Fruit en drupe peu charnue, obov\u00e9e, de 0,4-0,8 cm de long, d’abord verte, puis brun-rouge\u00e2tre et finalement noir\u00e2tre, sillonn\u00e9e ; il contient 2-4 graines qui pr\u00e9sentent un sillon dans la partie dorsale.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-12698","species","type-species","status-publish","hentry"],"acf":[],"yoast_head":"\nRhamnus alpina L. - North Africa Trees<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rhamnus alpina L. - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Arbuste caducifoli\u00e9, g\u00e9n\u00e9ralement dio\u00efque, pr\u00e9sentant parfois des fleurs hermaphrodites, atteignant 3(4) m de haut, rameux, g\u00e9n\u00e9ralement dress\u00e9. Tronc droit \u2013lorsqu\u2019il croit en bon sols\u2013 ou tortueux, \u00e0 \u00e9corce lisse, peu ou pas fendill\u00e9e, brun-gris\u00e2tre. Rameaux brun-rouge\u00e2tre, les plus jeunes verts, pubescents. 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