{"id":13256,"date":"2020-11-10T10:08:55","date_gmt":"2020-11-10T10:08:55","guid":{"rendered":"https:\/\/www.northafricatrees.org\/species\/leptadenia-pyrotechnica-3\/"},"modified":"2026-07-27T10:52:54","modified_gmt":"2026-07-27T10:52:54","slug":"leptadenia-pyrotechnica-3","status":"publish","type":"species","link":"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/leptadenia-pyrotechnica-3\/","title":{"rendered":"Leptadenia pyrotechnica (Forssk.) Decne."},"content":{"rendered":"<p>Arbuste r\u00e9tamo\u00efde, caducifoli\u00e9, hermaphrodite, de jusqu\u2019\u00e0 1-3(5) m de haut, ramifi\u00e9 depuis la base. Il se diff\u00e9rencie bien des autres esp\u00e8ces sahariennes du genre par ses tiges, qui sont aphylles, minces, \u00e0 ramifications oppos\u00e9es, tr\u00e8s ramifi\u00e9es, dress\u00e9es et rigides. Tiges et rameaux les plus vieux \u00e0 \u00e9corce blanc-gris\u00e2tre, lisse, bien que l\u00e9g\u00e8rement fendill\u00e9e sur les parties les plus anciennes et \u00e9paisses. Rameaux jeunes l\u00e9g\u00e8rement stri\u00e9s, verts, verd\u00e2tre-jaun\u00e2tre ou parfois glauques, glabres, plus ou moins pub\u00e9rulents. Feuilles oppos\u00e9es, sessiles, tr\u00e8s petites (1-4 mm), qui n\u2019apparaissent qu\u2019occasionnellement sur les jeunes ramilles de l\u2019ann\u00e9e, simples, \u00e0 bord entier, vertes sur les deux faces, glabres promptement caduques. Inflorescences en cymes axillaires ombelliformes, petites (1-5 cm), sur un p\u00e9doncule court de <em>c<\/em>. 1 cm, espac\u00e9es le long des tiges, \u00e0 2-6 fleurs chacune. Fleurs hermaphrodites, verd\u00e2tre-jaun\u00e2tre, pentam\u00e8res, tr\u00e8s petites (4-6 mm de diam\u00e8tre). Calice cupuliforme, verd\u00e2tre-blanch\u00e2tre, pubescent, divis\u00e9 environ \u00e0 la moiti\u00e9 en 5 petits lobes ovales-lanc\u00e9ol\u00e9s, plus ou moins aigus, persistant \u00e0 la fructification. Corolle \u00e0 5 p\u00e9tales ouverts en \u00e9toile, soud\u00e9s \u00e0 la base, ovales-lanc\u00e9ol\u00e9s, involut\u00e9s, \u00e0 bords repli\u00e9s vers le haut, plus ou moins pubescents. \u00c9tamines : 5, \u00e0 filets si courts que les anth\u00e8res semblent subsessiles \u00e0 premi\u00e8re vue. Coronule staminale annulaire, charnue. Le pollen est tr\u00e8s particulier, comme celui des autres esp\u00e8ces de la famille, se lib\u00e9rant habituellement group\u00e9 en deux masses denses et subglobuleuses, unies par un \u00ab translateur \u00bb sp\u00e9cialement con\u00e7u pour adh\u00e9rer aux insectes pollinisateurs. Fruit en follicule \u00e9troit et cylindrique relativement grand [(5)8-12 \u00d7 0,5-1 cm], d\u2019abord vert puis brun\u00e2tre, glabre, d\u00e9hiscent en 2 valves qui lib\u00e8rent de nombreuses graines ovo\u00efdes (6-8 mm), comprim\u00e9es, glabres mais pourvues d\u2019une m\u00e8che de longs poils droits (jusqu\u2019a 3 cm), blanch\u00e2tres.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-13256","species","type-species","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Leptadenia pyrotechnica (Forssk.) Decne. - 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=\"Leptadenia pyrotechnica (Forssk.) 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