{"id":11441,"date":"2020-11-10T09:01:40","date_gmt":"2020-11-10T09:01:40","guid":{"rendered":"https:\/\/www.northafricatrees.org\/genus\/rosa-l-3\/"},"modified":"2026-05-28T12:10:06","modified_gmt":"2026-05-28T12:10:06","slug":"rosa-l-3","status":"publish","type":"genus","link":"https:\/\/www.northafricatrees.org\/en\/genuses\/rosa-l-3\/","title":{"rendered":"Rosa L."},"content":{"rendered":"<p>Genus composed of about 360 species, mainly Asian, but also well represented in other temperate and cold zones of the Holarctic. In North Africa it is represented by 12 species, of which 1 is taxonomically doubtful (<em>R. mesatlantica<\/em>), 3 more (<strong>R. montana<\/strong>, <strong>R. stylosa<\/strong> and <strong>R. abietina<\/strong>) are taxa with alpine distribution and therefore their presence on the African territory should probably be verified, and 7 microspecies that belong to the complex group of <strong>R.<\/strong> <strong>canina <\/strong>in a broad taxonomic sense. This is probably the most difficult genus to treat, even for specialists. Furthermore there is a relatively high number of species, with only slight differences, along with the problem of frequent hybridisations and introgressions. Only in North Africa, more than 100 infraspecific taxa have been described, many of which could hardly be differentiated and accepted as valid today.<\/p>\n<p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"es\" data-phrase-index=\"0\">The presence and distribution of two species in the region should be reviewed:<\/span><\/span><\/p>\n<p><strong>R. mesatlantica<\/strong> H.Lindb. described as a subshrub with leaves with 5 leaflets, \u00b1 orbicular, with twice serrated margin, pubescent on both sides, without glands (except for the midrib on the underside), flowers solitary or in pairs, external sepals lobed, glandular margins, and smooth urceolus; located in the cedar forests of the northern Middle Atlas (Ras el Ma).<\/p>\n<p><strong>R. montana<\/strong> Chaix is a shrub up to 3 m in height, leaves with 5-7 \u00b1 orbicular leaflets, with twice serrated margin, glabrous on both sides, flowers usually solitary, sepals \u00b1 lobulate, ending in a foliaceous appendage, glandular on the dorsal side, persistent and upright on the mature urceolus; located in Algeria in the central Tellian Atlas [Jebel Megriss (near Constantine), Jebel Zaccar (Miliana), Djurdjura Massif] and Saharan Atlas (Jebel Bu Kherouf, near Aflou).<\/p>\n<p>These native roses cited above should not be confused with other roses that appear in the territory subspontaneously, usually originating from ornamental and\/or aromatic crops, such as <em>R. gallica<\/em> L. or <em>R. moschata <\/em>Herrm<em>.<\/em> In Morocco, particularly in the region of Kalaat M&#8217;Gouna (southern slope of the High Atlas), there is a long tradition (since the Middle Ages) of cultivation of <em>R. damascena <\/em>Mill., from which around 4,000 tons of petals are produced per year, mainly for the cosmetics industry and for the production of rosewater.<\/p>\n<p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"es\" data-phrase-index=\"0\">The key given below is for the species<\/span><\/span> traditionally considered natives in North Africa, including some very rare and\/or doubtful, to contribute towards their search and determination.<\/p>\n","protected":false},"template":"","class_list":["post-11441","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>Rosa L. - North Africa Trees<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rosa L. - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Genus composed of about 360 species, mainly Asian, but also well represented in other temperate and cold zones of the Holarctic. In North Africa it is represented by 12 species, of which 1 is taxonomically doubtful (R. mesatlantica), 3 more (R. montana, R. stylosa and R. abietina) are taxa with alpine distribution and therefore their...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.northafricatrees.org\/en\/genuses\/rosa-l-3\/\" \/>\n<meta property=\"og:site_name\" content=\"North Africa Trees\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-28T12:10:06+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\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\\\/en\\\/genuses\\\/rosa-l-3\\\/\",\"url\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/genuses\\\/rosa-l-3\\\/\",\"name\":\"Rosa L. - North Africa Trees\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#website\"},\"datePublished\":\"2020-11-10T09:01:40+00:00\",\"dateModified\":\"2026-05-28T12:10:06+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/genuses\\\/rosa-l-3\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/genuses\\\/rosa-l-3\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/genuses\\\/rosa-l-3\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Rosa 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\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/#organization\",\"name\":\"North \u00e1frica trees\",\"url\":\"https:\\\/\\\/www.northafricatrees.org\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@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":"Rosa L. - North Africa Trees","robots":{"index":"noindex","follow":"follow"},"og_locale":"en_US","og_type":"article","og_title":"Rosa L. - North Africa Trees","og_description":"Genus composed of about 360 species, mainly Asian, but also well represented in other temperate and cold zones of the Holarctic. 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