{"id":12272,"date":"2020-11-10T10:07:39","date_gmt":"2020-11-10T10:07:39","guid":{"rendered":"https:\/\/www.northafricatrees.org\/species\/vachellia-gerrardii-benth-p-j-h-hurter-subsp-negevensis-zohary-ragup-seigler-ebinger-maslin-3\/"},"modified":"2021-10-18T12:22:15","modified_gmt":"2021-10-18T12:22:15","slug":"vachellia-gerrardii-benth-p-j-h-hurter-subsp-negevensis-zohary-ragup-seigler-ebinger-maslin-3","status":"publish","type":"species","link":"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/vachellia-gerrardii-benth-p-j-h-hurter-subsp-negevensis-zohary-ragup-seigler-ebinger-maslin-3\/","title":{"rendered":"Vachellia gerrardii (Benth.) P.J.H.Hurter subsp. negevensis (Zohary) Ragup., Seigler, Ebinger &#038; Maslin"},"content":{"rendered":"<p>Arbre caducifoli\u00e9 de jusqu&rsquo;\u00e0 7-10 m de haut, \u00e9pineux, hermaphrodite, \u00e0 tronc g\u00e9n\u00e9ralement multicaule et tr\u00e8s ramifi\u00e9 dans sa partie sup\u00e9rieure, et houppier intriqu\u00e9. Tronc et rameaux principaux \u00e0 \u00e9corce fissur\u00e9e longitudinalement, gris\u00e2tre ou gris\u00e2tre-rouge\u00e2tre, qui ne se d\u00e9tache pas. Rameaux jeunes d\u2019abord poilus, puis d\u2019un brun rouge\u00e2tre et glabres. \u00c9pines stipulaires de 2-5(8) cm, appari\u00e9es, presque horizontales, droites, blanch\u00e2tres, parfois r\u00e9duites \u00e0 des \u00e9pines crochues de 3-5 mm. Feuilles de 2,5-6 cm, alternes, bipenn\u00e9es, \u00e0 p\u00e9tiole d\u2019environ 1 cm, tomenteuses au m\u00eame titre que le rachis, ce dernier \u00e0 3-9 paires de pennes -pourvu d\u2019une glande sous le point d\u2019insertion de la paire de pennes sup\u00e9rieure-, chacune \u00e0 (8)10-20(23) paires de folioles de 1,7-3,5 \u00d7 0,8-1,2 mm, oblongues, \u00e0 sommet arrondi, subsessiles et ins\u00e9r\u00e9es de mani\u00e8re tr\u00e8s excentr\u00e9e, pub\u00e9rulentes-tomenteuses, rarement glabres, vertes. Inflorescences en capitules glom\u00e9ruliformes globuleux de 8-12(15) mm de diam\u00e8tre, axillaires, solitaires ou en fascicules de jusqu\u2019\u00e0 3, p\u00e9doncul\u00e9es \u2013p\u00e9doncule de jusqu\u2019\u00e0 3 cm, tomenteux\u2013, \u00e0 nombreuses fleurs minuscules, blanches, cr\u00e8me ou d\u2019un jaune brillant. Calice de <em>c<\/em>. 1,5 mm, \u00e0 dents pub\u00e9rulentes. Corolle de <em>c<\/em>. 2,5 mm. \u00c9tamines tr\u00e8s nombreuses. Gousse de 6-12 cm \u00d7 6-12(22) mm, pendante, lin\u00e9aire ou \u00e0 bords l\u00e9g\u00e8rement sinueux, falciforme, non resserr\u00e9e entre les graines, comprim\u00e9e, brun-rouge\u00e2tre, pub\u00e9rulente-tomenteuse, bien que parfois glabre avec l\u2019\u00e2ge, d\u00e9hiscente, \u00e0 6-8 graines. Graines de 6-8 \u00d7 6-8 mm, ellipso\u00efdales, comprim\u00e9es, brun\u00e2tres et lisses.<\/p>\n","protected":false},"featured_media":0,"template":"","short_name":"Vachellia gerrardii","name_html":"<strong>Vachellia gerrardii<\/strong>","short_description":"","common_names":"<em>Acacia <\/em><em>iraqensis <\/em>Rch. fil. <em>A. gerrardii <\/em>var<em>. najdensis<\/em> Chaudhary, <em>A. pachyceras <\/em>var. <em>najdensis<\/em> (Chaudhary) Boulos","other_name":"<em>Fra.<\/em>: Acacia.\u00a0\u00a0 <em>Esp<\/em>.: Acacia.\u00a0\u00a0 <em>Ang.<\/em>: Acacia.\u00a0\u00a0 <em>Ara<\/em>.: Talh, sayyal.","flowering":"juillet-octobre.","fruiting":"novembre.","habitat":"Zones d\u00e9sertiques et semi-d\u00e9sertiques. L\u2019esp\u00e8ce constitue l\u2019une des composantes principales de la v\u00e9g\u00e9tation des oueds, et sa r\u00e9partition semble \u00eatre tr\u00e8s li\u00e9e aux routes des caravanes.","distribution":"L\u2019esp\u00e8ce, au Sahel central et en Afrique orientale. La sous-esp\u00e8ce : Sina\u00ef, Palestine, Isra\u00ebl, Arabie saoudite, Oman, Kuweit et Irak.","observations":"","conservation":"Esp\u00e8ce relativement commune \u00e0 aire de r\u00e9partition vaste, qui n\u2019est pas consid\u00e9r\u00e9e comme menac\u00e9e. Elle n\u2019est actuellement pas \u00e9valu\u00e9e \u00e0 l\u2019\u00e9chelle mondiale dans la Liste rouge des esp\u00e8ces de l\u2019UICN.","genus":false,"images":false,"map_legend":"","kml":false,"zone_1":"[\" 32.54968423523934,29.95705472689417\",\" 32.55551693136135,29.95789384472522\",\" 32.55611322054875,29.96123453564536\",\" 32.56417527037246,29.95441351067501\",\" 32.56676527829501,29.94878154233436\",\" 32.55514293120137,29.94069987919613\",\" 32.55653868531215,29.93806745834655\",\" 32.55836309048431,29.93903070690163\",\" 32.55867640619124,29.93730889638852\",\" 32.5643578273519,29.93850884920408\",\" 32.55644749045939,29.93579596241381\",\" 32.55667111947662,29.93194581904436\",\" 32.55775925868289,29.93226684643787\",\" 32.55830676414593,29.93501359540113\",\" 32.55975800732625,29.93342388450469\",\" 32.56253023768039,29.93477135851146\",\" 32.56422354957721,29.93405437041292\",\" 32.57069102587019,29.93953697395222\",\" 32.57343811117994,29.94658296882898\",\" 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P.J.H.Hurter subsp. negevensis (Zohary) Ragup., Seigler, Ebinger &amp; Maslin - 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=\"Vachellia gerrardii (Benth.) P.J.H.Hurter subsp. negevensis (Zohary) Ragup., Seigler, Ebinger &amp; Maslin - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Arbre caducifoli\u00e9 de jusqu&rsquo;\u00e0 7-10 m de haut, \u00e9pineux, hermaphrodite, \u00e0 tronc g\u00e9n\u00e9ralement multicaule et tr\u00e8s ramifi\u00e9 dans sa partie sup\u00e9rieure, et houppier intriqu\u00e9. Tronc et rameaux principaux \u00e0 \u00e9corce fissur\u00e9e longitudinalement, gris\u00e2tre ou gris\u00e2tre-rouge\u00e2tre, qui ne se d\u00e9tache pas. Rameaux jeunes d\u2019abord poilus, puis d\u2019un brun rouge\u00e2tre et glabres. \u00c9pines stipulaires de 2-5(8) cm,...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.northafricatrees.org\/fr\/esp\u00e8ce\/vachellia-gerrardii-benth-p-j-h-hurter-subsp-negevensis-zohary-ragup-seigler-ebinger-maslin-3\/\" \/>\n<meta property=\"og:site_name\" content=\"North Africa Trees\" \/>\n<meta property=\"article:modified_time\" content=\"2021-10-18T12:22:15+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture est.\">\n\t<meta name=\"twitter:data1\" content=\"1 minute\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.northafricatrees.org\/#organization\",\"name\":\"North \\u00e1frica trees\",\"url\":\"https:\/\/www.northafricatrees.org\/\",\"sameAs\":[],\"logo\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.northafricatrees.org\/#logo\",\"inLanguage\":\"fr-FR\",\"url\":\"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\/#logo\"}},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.northafricatrees.org\/#website\",\"url\":\"https:\/\/www.northafricatrees.org\/\",\"name\":\"North Africa Trees\",\"description\":\"\\u00c1rboles y arbustos aut\\u00f3ctonos del Norte de \\u00c1frica\",\"publisher\":{\"@id\":\"https:\/\/www.northafricatrees.org\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.northafricatrees.org\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.northafricatrees.org\/fr\/esp\\u00e8ce\/vachellia-gerrardii-benth-p-j-h-hurter-subsp-negevensis-zohary-ragup-seigler-ebinger-maslin-3\/#webpage\",\"url\":\"https:\/\/www.northafricatrees.org\/fr\/esp\\u00e8ce\/vachellia-gerrardii-benth-p-j-h-hurter-subsp-negevensis-zohary-ragup-seigler-ebinger-maslin-3\/\",\"name\":\"Vachellia gerrardii (Benth.) 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