{"id":13181,"date":"2020-11-10T10:08:48","date_gmt":"2020-11-10T10:08:48","guid":{"rendered":"https:\/\/www.northafricatrees.org\/species\/acer-opalus-3\/"},"modified":"2023-05-23T16:39:01","modified_gmt":"2023-05-23T16:39:01","slug":"acer-opalus-3","status":"publish","type":"species","link":"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/acer-opalus-3\/","title":{"rendered":"Acer opalus Mill."},"content":{"rendered":"

Petit arbre caducifoli\u00e9, polygame, atteignant 10-12(15) m de haut, \u00e0 port irr\u00e9gulier, \u00e0 houppier habituellement arrondi lorsqu\u2019il vit isol\u00e9. Tronc bien d\u00e9fini, droit ou l\u00e9g\u00e8rement tortueux en environnements rupicoles, \u00e0 \u00e9corce brun-gris\u00e2tre, \u00e9paisse, fendill\u00e9e. Rameaux gris\u00e2tres ou brun-jaun\u00e2tre, \u00e0 \u00e9corce lisse, les plus jeunes verd\u00e2tres ou brun-rouge\u00e2tre, pubescents. Feuilles de 2,5-18(20) \u00d7 2,5-17(19) cm, oppos\u00e9es, palm\u00e9es, pentalob\u00e9es, les plus petites rarement trilob\u00e9es, coriaces ou non, glabres, lustreuses de couleur vert vif sur l\u2019endroit, plus ou moins pubescentes, du moins au niveau des nervures principales, \u00e0 dens\u00e9ment tomenteuses sur l\u2019envers. Lobules in\u00e9gaux, irr\u00e9guli\u00e8rement dent\u00e9s ou serr\u00e9s, les 2 basaux plus petits, rarement absents, les sup\u00e9rieurs habituellement \u00e0 sinus de profondeur variable (15-70 % du limbe), parall\u00e8les \u00e0 convergents. P\u00e9tiole bien d\u00e9velopp\u00e9, poilu ou glabre. Inflorescences corymbiformes, pendantes, \u00e0 p\u00e9doncules plus ou moins pubescents. Fleurs hermaphrodites ou unisexu\u00e9es (m\u00e2les) blanc-jaun\u00e2tre \u00e0 verd\u00e2tre-jaun\u00e2tre. Calice \u00e0 4-5 s\u00e9pales libres. Corolle \u00e0 5 p\u00e9tales dispos\u00e9s en alternance avec les s\u00e9pales, qui naissent d’un disque charnu duquel partent \u00e9galement les 8 \u00e9tamines de la fleur, tr\u00e8s exsertes chez les fleurs m\u00e2les. Fruit en disamare, \u00e0 zone s\u00e9minif\u00e8re glabre ou poilue et ailes qui forment un angle habituellement aigu, rarement obtus, de (30)40-100(120)\u00b0.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-13181","species","type-species","status-publish","hentry"],"acf":[],"yoast_head":"\nAcer opalus Mill. - 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=\"Acer opalus Mill. - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Petit arbre caducifoli\u00e9, polygame, atteignant 10-12(15) m de haut, \u00e0 port irr\u00e9gulier, \u00e0 houppier habituellement arrondi lorsqu\u2019il vit isol\u00e9. Tronc bien d\u00e9fini, droit ou l\u00e9g\u00e8rement tortueux en environnements rupicoles, \u00e0 \u00e9corce brun-gris\u00e2tre, \u00e9paisse, fendill\u00e9e. 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