{"id":1926,"date":"2022-08-21T15:32:08","date_gmt":"2022-08-21T13:32:08","guid":{"rendered":"https:\/\/lecompagnonrouge.fr\/?p=1926"},"modified":"2025-06-18T19:56:09","modified_gmt":"2025-06-18T17:56:09","slug":"convolvulus-sepium-liseron-des-haies","status":"publish","type":"post","link":"https:\/\/lecompagnonrouge.fr\/?p=1926","title":{"rendered":"Convolvulus sepium. Liseron des haies"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2022\/08\/calystegiasepium2-768x1024.jpg\" alt=\"\" class=\"wp-image-1928\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2022\/08\/calystegiasepium2-768x1024.jpg 768w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2022\/08\/calystegiasepium2-225x300.jpg 225w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2022\/08\/calystegiasepium2-300x400.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2022\/08\/calystegiasepium2.jpg 850w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Convolvulus sepium comprends plusieurs sous esp\u00e8ces, dont certaines \u00e9lev\u00e9es avec une tr\u00e8s grande prudence au rang d&rsquo;esp\u00e8ces dans Flora Gallica; sous l&rsquo;ancien genre Calystegia:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>(La sous esp\u00e8ce roseata, si elle admise, est sans doute la plus difficile \u00e0 distinguer. En effet c&rsquo;est son rose au p\u00e9tales qui tend \u00e0 la distinguer. Or il existe un gradient du color\u00e9 vers le blanc depuis la mer vers l&rsquo;int\u00e9rieur des terres).<\/li>\n\n\n\n<li>La sous esp\u00e8ce autonyme pr\u00e9sente des bract\u00e9es peu larges qui ne se recouvrent pas et ne cachent pas le calice. Avec une fleur grande. Plante glabre ou pub\u00e9rulente. C&rsquo;est la plante qui est photographi\u00e9 ici.<\/li>\n\n\n\n<li>La sous esp\u00e8ce sylvatica (Convolvulus sylvatica dans Flora Gallica) pr\u00e9sente de grandes bract\u00e9es qui se recouvrent bien, et cachent le calice. Fleur blanche encore plus grande. Plante glabre. Limbe \u00e0 oreilles pointues comme chez la pr\u00e9c\u00e9dente.<\/li>\n\n\n\n<li>La sous esp\u00e8ce pulchra (= Convolvulus dubius dans Flora Gallica), pr\u00e9sente des bandes roses (voir la premi\u00e8re de la liste pour risque de confusion), se distingue surtout par ses oreillettes majoritairement arrondies ou faiblement anguleux. Plante pub\u00e9rulente, au moins au niveau des jeunes p\u00e9dicelles.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-medium-font-size\">Il s&rsquo;ajoute la possibilit\u00e9 d&rsquo;intogressions de plantes horticoles dans les exemplaires identifi\u00e9s.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Position taxonomique:<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Calystegia est s\u00e9par\u00e9e du genre convolvulus par la forme du pollen et par la forme des bract\u00e9oles, mais non ou tr\u00e8s fragilement par la g\u00e9n\u00e9tique (renvoi courant \u00e0 l\u2019\u00e9tude de Stepanovic). Ce liseron est du groupe Calystegia.<\/p>\n\n\n\n<p class=\"has-small-font-size\"><a href=\"https:\/\/lecompagnonrouge.fr\/?s=solanales\">Solanales<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=convolvulaceae\">Convolvulaceae<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=calystegia\">Convolvulus<\/a>&nbsp;sepium subsp. sepium<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Plante hypernitrophile.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les liserons forment des mauvaises herbes pratiquement inextirpables. Cela n&rsquo;en fait pas des esp\u00e8ces envahissantes. Une <a href=\"https:\/\/lecompagnonrouge.fr\/?p=2376\">esp\u00e8ce envahissante<\/a> est une esp\u00e8ce qui atteint l&rsquo;environnement.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">M\u00e9gaphorbiaies planitiaires-collin\u00e9ennes, eutrophiles, nitrophiles. Convolvuletalia sepium T\u00fcxen 1950 ex Mucina in Mucina, Grabherr &amp; Ellmauer 1993<\/p>\n\n\n\n<p>Lieu(x) o\u00f9 la plante est photographi\u00e9e: Montreuil-sous-Bois<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Convolvulus sepium comprends plusieurs sous esp\u00e8ces, dont certaines \u00e9lev\u00e9es avec une tr\u00e8s grande prudence au rang d&rsquo;esp\u00e8ces dans Flora Gallica; sous l&rsquo;ancien genre Calystegia: Il s&rsquo;ajoute la possibilit\u00e9 d&rsquo;intogressions de plantes horticoles dans les exemplaires identifi\u00e9s. Position taxonomique: Calystegia est s\u00e9par\u00e9e du genre convolvulus par la forme du pollen et par la forme des bract\u00e9oles,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1927,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[450,1182],"tags":[],"class_list":["post-1926","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-convolvulaceae","category-convolvulus-sepium"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Convolvulus sepium. 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