{"id":12248,"date":"2020-11-10T10:07:38","date_gmt":"2020-11-10T10:07:38","guid":{"rendered":"https:\/\/www.northafricatrees.org\/species\/senna-alexandrina-mill-3\/"},"modified":"2026-07-21T16:47:20","modified_gmt":"2026-07-21T16:47:20","slug":"senna-alexandrina-mill-3","status":"publish","type":"species","link":"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/senna-alexandrina-mill-3\/","title":{"rendered":"Senna alexandrina Mill."},"content":{"rendered":"

Sous-arbuste ou arbuste \u00e0 feuilles persistantes atteignant 1(2) m de haut, hermaphrodite, dress\u00e9, multicaule, tr\u00e8s ramifi\u00e9 depuis la base. Tiges et rameaux les plus vieux \u00e0 \u00e9corce blanch\u00e2tre, glabres, les plus jeunes courtement poilus. Feuilles [3-15(25) cm] alternes, paripenn\u00e9es, \u00e0 stipules de 3-5(9) mm, subul\u00e9es ou \u00e9troitement triangulaires, \u00e0 p\u00e9tiole de 1-2,2 cm, \u00e9glanduleux et poilu au d\u00e9but au m\u00eame titre que le rachis, et 2-8(13) paires de folioles de 15-45(50) \u00d7 4-10(15) mm, subsessiles, ov\u00e9es-lanc\u00e9ol\u00e9es ou lanc\u00e9ol\u00e9es, un peu asym\u00e9triques, aigu\u00ebs au sommet et parfois mucron\u00e9es, att\u00e9nu\u00e9es-arrondies \u00e0 la base, \u00e0 bord entier, pubescentes, d\u2019un vert clair sur l\u2019endroit et un peu glauques sur l\u2019envers. Inflorescences rac\u00e9miformes, axillaires, de 5-30 cm, dispos\u00e9es en petits groupes, dress\u00e9es, \u00e0 nombreuses fleurs p\u00e9dicell\u00e9es, \u00e0 p\u00e9dicelles de jusqu\u2019\u00e0 4-6 mm \u00e0 la fructification, glabres ou l\u00e9g\u00e8rement pubescents. Calice \u00e0 5 s\u00e9pales fusionn\u00e9s en une structure cupuliforme courte, \u00e0 dents de 5-7 mm et ouverts en \u00e9toiles, oblongs ou ov\u00e9-oblongs, glabres, verd\u00e2tres. Corolle \u00e0 5 p\u00e9tales de 7-17 mm, ov\u00e9s ou obov\u00e9s, ouverts en \u00e9toile, jaunes ou jaun\u00e2tre-orang\u00e9, \u00e0 nervation brun\u00e2tre, glabres. \u00c9tamines : 10, libres, tr\u00e8s in\u00e9gales, 2 longues, \u00e9galant presque les p\u00e9tales et \u00e0 anth\u00e8res lin\u00e9aires-arqu\u00e9es, les m\u00e9dianes plus courtes et \u00e0 anth\u00e8res droites presque \u00e9gales au filet, brun-jaun\u00e2tre, et les 3 sup\u00e9rieures transform\u00e9es en staminodes. Ovaire courtement poilu. Gousse de (3)4-7 \u00d7 1,6-2,6 cm, lin\u00e9aire-oblongue, tr\u00e8s comprim\u00e9e, \u00e0 valves papyrac\u00e9es et transversalement c\u00f4tel\u00e9es-r\u00e9ticul\u00e9es, d\u2019abord verte puis brun-jaun\u00e2tre en m\u00fbrissant, glabre ou poilue, \u00e0 6-7(10) graines s\u00e9par\u00e9es par des septes. Graines de 3-7 \u00d7 (2)3-3,5(4) mm, obovo\u00efdes, comprim\u00e9es, verd\u00e2tres, gris\u00e2tres ou d\u2019un brun p\u00e2le.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-12248","species","type-species","status-publish","hentry"],"acf":[],"yoast_head":"\nSenna alexandrina 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=\"Senna alexandrina Mill. - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Sous-arbuste ou arbuste \u00e0 feuilles persistantes atteignant 1(2) m de haut, hermaphrodite, dress\u00e9, multicaule, tr\u00e8s ramifi\u00e9 depuis la base. Tiges et rameaux les plus vieux \u00e0 \u00e9corce blanch\u00e2tre, glabres, les plus jeunes courtement poilus. 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