{"id":12209,"date":"2020-11-10T10:07:35","date_gmt":"2020-11-10T10:07:35","guid":{"rendered":"https:\/\/www.northafricatrees.org\/species\/populus-alba-l-3\/"},"modified":"2026-07-19T11:12:14","modified_gmt":"2026-07-19T11:12:14","slug":"populus-alba-l-3","status":"publish","type":"species","link":"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/populus-alba-l-3\/","title":{"rendered":"Populus alba L."},"content":{"rendered":"<p>Arbre caducifoli\u00e9, dio\u00efque, atteignant 30 m de haut, \u00e0 port irr\u00e9gulier. Tronc plus ou moins droit, lisse et large (jusqu\u2019\u00e0 2,5 m de diam\u00e8tre chez certains exemplaires). \u00c9corce gris\u00e2tre-blanch\u00e2tre \u00e0 blanche, peu fendill\u00e9e sauf chez les exemplaires \u00e2g\u00e9s, sur lesquels elle s\u2019\u00e9paissie et se fendille profond\u00e9ment, du moins \u00e0 la base ou sur la moiti\u00e9 inf\u00e9rieure. Ramilles dens\u00e9ment couvertes de poils feutr\u00e9s. Bourgeons \u00e0 5-6 \u00e9cailles, peu ou pas visqueuses, d\u2019abord tomenteuses, puis glabrescentes. Feuilles [(1,5)4-12 \u00d7 (1)3-10 cm] alternes, sub\u00e9gales, suborbiculaires \u00e0 elliptiques, plus ou moins palm\u00e9es, enti\u00e8res \u00e0 la base et plus ou moins profond\u00e9ment lobul\u00e9es-dent\u00e9es sur la moiti\u00e9 sup\u00e9rieure, glabrescentes, de couleur vert fonc\u00e9 sur l&rsquo;endroit et blanch\u00e2tres-tomenteuses sur l&rsquo;envers, largement p\u00e9tiol\u00e9es. Inflorescences en chatons de 5-15 \u00d7 1,5-2 cm, cylindriques, pendants, tr\u00e8s villeux les m\u00e2les, peu les femelles. Fleurs \u00e0 disque nectarif\u00e8re persistant ; les m\u00e2les \u00e0 3-10 \u00e9tamines \u00e0 filets blancs et anth\u00e8res pourpres au d\u00e9but, puis jaun\u00e2tres, les femelles \u00e0 ovaire ovo\u00efde-conique et 2 stigmates verd\u00e2tre-jaun\u00e2tre. Le fruit est une petite capsule oblongue-conique de <em>c<\/em>. 4 mm, d\u00e9hiscente en 2 valves qui lib\u00e8rent de nombreuses graines pourvues de longs poils blanch\u00e2tres cotonneux. 2n = 38.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-12209","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>Populus alba 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=\"Populus alba L. - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Arbre caducifoli\u00e9, dio\u00efque, atteignant 30 m de haut, \u00e0 port irr\u00e9gulier. 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