{"id":11948,"date":"2020-11-10T10:07:16","date_gmt":"2020-11-10T10:07:16","guid":{"rendered":"https:\/\/www.northafricatrees.org\/species\/arthrocnemum-macrostachyum\/"},"modified":"2026-07-17T10:48:35","modified_gmt":"2026-07-17T10:48:35","slug":"arthrocnemum-macrostachyum","status":"publish","type":"species","link":"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/arthrocnemum-macrostachyum\/","title":{"rendered":"Arthrocaulon macrostachyum (Moric.) Piirainen &#038; G. Kadereit"},"content":{"rendered":"<p>Arbrisseau \u00e0 feuilles persistantes, hermaphrodite, \u00e0 port g\u00e9n\u00e9ralement dress\u00e9, de jusqu\u2019\u00e0 1,5 m de haut, tr\u00e8s rameux. Les ramilles fertiles, herbac\u00e9es, naissent oppos\u00e9es et sont articulaires, cylindriques, vertes et glabres, d\u00e9pourvues de feuilles en apparence. Le premier article est plus ou moins aplani et anguleux, les suivants plus ou moins cylindriques. Feuilles oppos\u00e9es, sessiles, tr\u00e8s petites, formant un anneau hyalin qui entoure l\u2019article ou le segment au niveau de l\u2019apex. Inflorescences en \u00e9pis cylindriques et articul\u00e9s (20-50 mm de long \u00d7 3-5 mm de diam\u00e8tre). Les fleurs apparaissent en cymes triflores situ\u00e9es \u00e0 la base des articles ou segments. La fleur centrale est toujours l\u00e9g\u00e8rement plus grande que les lat\u00e9rales ; p\u00e9rianthe \u00e0 une seule pi\u00e8ce (form\u00e9e en r\u00e9alit\u00e9 de 4 t\u00e9pales soud\u00e9s \u00e0 section circulaire) ; anth\u00e8res jaunes de 1-1,3 mm, style de 0,4-0,7 mm. En tombant, les fleurs laissent une cavit\u00e9 unique, sans cloisonnement \u00e0 parois membraneuses. Le fruit est un ak\u00e8ne \u00e0 graine noire et verruqueuse.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-11948","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>Arthrocaulon macrostachyum (Moric.) Piirainen &amp; G. Kadereit - 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=\"Arthrocaulon macrostachyum (Moric.) Piirainen &amp; G. Kadereit - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Arbrisseau \u00e0 feuilles persistantes, hermaphrodite, \u00e0 port g\u00e9n\u00e9ralement dress\u00e9, de jusqu\u2019\u00e0 1,5 m de haut, tr\u00e8s rameux. Les ramilles fertiles, herbac\u00e9es, naissent oppos\u00e9es et sont articulaires, cylindriques, vertes et glabres, d\u00e9pourvues de feuilles en apparence. Le premier article est plus ou moins aplani et anguleux, les suivants plus ou moins cylindriques. 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