{"id":11070,"date":"2020-11-10T09:01:14","date_gmt":"2020-11-10T09:01:14","guid":{"rendered":"https:\/\/www.northafricatrees.org\/genus\/artemisia-l\/"},"modified":"2022-12-07T10:08:44","modified_gmt":"2022-12-07T10:08:44","slug":"artemisia-l","status":"publish","type":"genus","link":"https:\/\/www.northafricatrees.org\/fr\/genres\/artemisia-l\/","title":{"rendered":"Artemisia L."},"content":{"rendered":"<p>Genre comprenant environ 480 esp\u00e8ces amplement r\u00e9parties dans l\u2019h\u00e9misph\u00e8re nord. Il est repr\u00e9sent\u00e9 par 22 esp\u00e8ces dans le N. de l\u2019Afrique, r\u00e9parties principalement dans l\u2019aire m\u00e9diterran\u00e9enne. En g\u00e9n\u00e9ral, ce sont des cham\u00e9phytes de moins de 50 cm, bien que parfois des esp\u00e8ces comme <strong>A. judaica<\/strong> et <strong>A. absinthium<\/strong> puissent atteindre jusqu&rsquo;\u00e0 1 m de hauteur. Une seule esp\u00e8ce, <strong>A. arborescens<\/strong>, peut \u00eatre consid\u00e9r\u00e9e comme v\u00e9ritablement arbustive. Parmi les autres esp\u00e8ces, les suivantes se distinguent comme les plus robustes :<\/p>\n<p><strong>A. campestris<\/strong> et <strong>A. herba-alba<\/strong> sont m\u00e9diterran\u00e9ennes, pratiquement absentes au Sahara septentrional, mais avec des populations isol\u00e9es dans les massifs montagneux du Sahara central sous forme de vestiges de l\u2019\u00e9poque lointaine o\u00f9 ces montagnes \u00e9taient couvertes d\u2019une v\u00e9g\u00e9tation m\u00e9diterran\u00e9enne.<\/p>\n<p>Bien que de petite taille, des sous-arbriseaux g\u00e9n\u00e9ralement inf\u00e9rieurs \u00e0 50 cm, il y a 3 esp\u00e8ces qui peuvent devenir tr\u00e8s communs. Les 3 avec de jeunes branches plus ou moins blanch\u00e2tres parce qu\u2019elles sont couvertes de poils blancs, sont :<\/p>\n<p><strong> A. herba-alba<\/strong> Asso (<em>Fra<\/em>.\u00a0: Armoise blanche. <em>Tamahaq\u00a0<\/em>: Zazar\u00e9), l\u2019une des plus commune, est tr\u00e8s polymorphe, avec de nombreuses sous-esp\u00e8ces d\u00e9crites, fr\u00e9quemment \u00e9lev\u00e9es au rang d\u2019esp\u00e8ce. Elle se diff\u00e9rencie par ses feuilles adultes tr\u00e8s petites (2-8\u00a0mm de long), vert-gris\u00e2tre, \u00e0 segments tr\u00e8s \u00e9troits, filiformes (moins de 1\u00a0mm de large), et ses capitules allong\u00e9s, \u00e9troits (1-3\u00a0mm de large), \u00e0 fleurs peu nombreuses (3-6)\u00a0; elle vit dans les zones s\u00e8ches du S. de la r\u00e9gion m\u00e9diterran\u00e9enne.<\/p>\n<p><strong> A. barrelieri <\/strong>Besser, de jusqu\u2019\u00e0 0,7\u00a0m et caract\u00e9ris\u00e9e par ses feuilles adultes (1-2,5\u00a0cm) bipenn\u00e9es, \u00e0 segments finaux lin\u00e9aires-spatul\u00e9s, de moins de 1\u00a0mm de large et capitules floraux ovo\u00efdes, de 2,5-3\u00a0mm de diam\u00e8tre, homogames (\u00e0 fleurs toutes hermaphrodites), end\u00e9mique du S.-E. de la p\u00e9ninsule ib\u00e9rique et du N. du Maroc.<\/p>\n<p><strong> A. alba <\/strong>Turra (<em>A. fruticosa <\/em>Asso) pr\u00e9sente des tiges ligneuses \u00e0 la base, des feuilles glabrescentes et verd\u00e2tres, \u00e0 segments de 1-2\u00a0mm de large et des capitules (3-4\u00a0mm de large) en \u00e9troites inflorescences spiciformes. Il s\u2019agit d\u2019une plante m\u00e9diterran\u00e9enne qui pr\u00e9sente 2 sous-esp\u00e8ces dans le N. de l\u2019Afrique, la subsp.<strong> chitachensis <\/strong>Maire, end\u00e9mique du Maroc, et la subsp.<strong> kabylica <\/strong>(Chabert) Greuter, end\u00e9mique de l\u2019Alg\u00e9rie (Kabylie occidentale\u00a0: A\u00efn El Hammam).<\/p>\n<p>Les armoises, et plus particuli\u00e8rement <em>A. herba-alba,<\/em> jouent un r\u00f4le important dans la formation de vastes paysages nord-africains, en particulier dans les zones steppiques, o\u00f9 ces cham\u00e6phytes sont fr\u00e9quemment dominants.<\/p>\n<p>Esp\u00e8ces plus ou moins communes et \u00e0 aire de r\u00e9partition vaste. Elles ne sont actuellement pas \u00e9valu\u00e9es \u00e0 l\u2019\u00e9chelle mondiale dans la Liste rouge des esp\u00e8ces de l\u2019UICN.<\/p>\n","protected":false},"template":"","class_list":["post-11070","genus","type-genus","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>Artemisia 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=\"Artemisia L. - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Genre comprenant environ 480 esp\u00e8ces amplement r\u00e9parties dans l\u2019h\u00e9misph\u00e8re nord. Il est repr\u00e9sent\u00e9 par 22 esp\u00e8ces dans le N. de l\u2019Afrique, r\u00e9parties principalement dans l\u2019aire m\u00e9diterran\u00e9enne. En g\u00e9n\u00e9ral, ce sont des cham\u00e9phytes de moins de 50 cm, bien que parfois des esp\u00e8ces comme A. judaica et A. absinthium puissent atteindre jusqu&rsquo;\u00e0 1 m de hauteur....\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.northafricatrees.org\/generos\/artemisia-l-3\/\" \/>\n<meta property=\"og:site_name\" content=\"North Africa Trees\" \/>\n<meta property=\"article:modified_time\" content=\"2022-12-07T10:08:44+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/generos\\\/artemisia-l-3\\\/\",\"url\":\"https:\\\/\\\/www.northafricatrees.org\\\/generos\\\/artemisia-l-3\\\/\",\"name\":\"Artemisia L. - North Africa Trees\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#website\"},\"datePublished\":\"2020-11-10T09:01:14+00:00\",\"dateModified\":\"2022-12-07T10:08:44+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/generos\\\/artemisia-l-3\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.northafricatrees.org\\\/generos\\\/artemisia-l-3\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/generos\\\/artemisia-l-3\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\\\/\\\/www.northafricatrees.org\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Artemisia L.\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/\",\"name\":\"North Africa Trees\",\"description\":\"\u00c1rboles y arbustos aut\u00f3ctonos del Norte de \u00c1frica\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#organization\",\"name\":\"North \u00e1frica trees\",\"url\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.northafricatrees.org\\\/wp-content\\\/uploads\\\/2020\\\/10\\\/logo-north-africa-trees.png\",\"contentUrl\":\"https:\\\/\\\/www.northafricatrees.org\\\/wp-content\\\/uploads\\\/2020\\\/10\\\/logo-north-africa-trees.png\",\"width\":80,\"height\":70,\"caption\":\"North \u00e1frica trees\"},\"image\":{\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Artemisia L. - North Africa Trees","robots":{"index":"noindex","follow":"follow"},"og_locale":"fr_FR","og_type":"article","og_title":"Artemisia L. - North Africa Trees","og_description":"Genre comprenant environ 480 esp\u00e8ces amplement r\u00e9parties dans l\u2019h\u00e9misph\u00e8re nord. 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