{"id":18208,"date":"2024-09-25T09:01:16","date_gmt":"2024-09-25T07:01:16","guid":{"rendered":"https:\/\/dev.asleman.org\/?page_id=18208"},"modified":"2025-07-21T14:22:17","modified_gmt":"2025-07-21T12:22:17","slug":"lagarosiphon","status":"publish","type":"page","link":"https:\/\/asleman.org\/en\/lagarosiphon\/","title":{"rendered":"Lagarosiphon"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"18208\" class=\"elementor elementor-18208\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8e0a1b7 e-flex e-con-boxed e-con e-parent\" data-id=\"8e0a1b7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-debb39a elementor-widget elementor-widget-heading\" data-id=\"debb39a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Census of <i>Lagarosiphon major<\/i>\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-687ed98 elementor-widget elementor-widget-text-editor\" data-id=\"687ed98\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tAssessment of the presence of this aquatic invasive alien plant in the ports of Vaud and Valais on the Lake Geneva region.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-816573e e-flex e-con-boxed e-con e-parent\" data-id=\"816573e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7217112 e-con-full e-flex e-con e-child\" data-id=\"7217112\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7ec83a5 elementor-widget__width-initial elementor-widget-tablet__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-counter\" data-id=\"7ec83a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-title\">listed ports<\/div>\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\"><\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"2000\" data-to-value=\"43\" data-from-value=\"0\" data-delimiter=\",\">0<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec443c5 elementor-widget__width-initial elementor-widget-tablet__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-counter\" data-id=\"ec443c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-title\">volunteers<\/div>\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\"><\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"2000\" data-to-value=\"50\" data-from-value=\"0\" data-delimiter=\"&#039;\">0<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-962e787 elementor-widget__width-initial elementor-widget-tablet__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-counter\" data-id=\"962e787\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-title\">half-days in the field<\/div>\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\"><\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"2000\" data-to-value=\"13\" data-from-value=\"0\" data-delimiter=\"&#039;\">0<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d5a56a elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"4d5a56a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">This participatory science project, commissioned by the\u00a0<a href=\"https:\/\/www.vd.ch\/djes\/dge\/dge-dirna\/dge-biodiv\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/www.vd.ch\/djes\/dge\/dge-dirna\/dge-biodiv&amp;source=gmail&amp;ust=1729079285450000&amp;usg=AOvVaw0Soovr7mt3z8TQQudB6kUK\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Biodiversity and Landscape Division<\/a> of the Canton of Vaud and by the\u00a0<a href=\"https:\/\/www.vs.ch\/web\/sfnp\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/www.vs.ch\/web\/sfnp&amp;source=gmail&amp;ust=1729079285450000&amp;usg=AOvVaw0RFxVs7zz2iuZPPduCLWE5\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Forest, Nature and Landscape Service<\/a> in the Canton of Valais has given us a picture of the extent of the spread of <em>Lagarosiphon major<\/em>\u00a0in the areas most conducive to its colonisation, thanks to the participation of 50 volunteers in the field.<\/p><p style=\"font-weight: 400;\">The campaign ended in September 2024.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e1f8b0d e-flex e-con-boxed e-con e-child\" data-id=\"e1f8b0d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eeee5f6 elementor-widget elementor-widget-image\" data-id=\"eeee5f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_kayak-722x1024-1.png\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"722\" height=\"1024\" src=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_kayak-722x1024-1.png\" class=\"attachment-large size-large wp-image-18243\" alt=\"\" srcset=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_kayak-722x1024-1.png 722w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_kayak-722x1024-1-212x300.png 212w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_kayak-722x1024-1-8x12.png 8w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dc82e3 elementor-widget elementor-widget-image\" data-id=\"2dc82e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_plongee-724x1024-1.png\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"724\" height=\"1024\" src=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_plongee-724x1024-1.png\" class=\"attachment-large size-large wp-image-18242\" alt=\"\" srcset=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_plongee-724x1024-1.png 724w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_plongee-724x1024-1-212x300.png 212w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_plongee-724x1024-1-8x12.png 8w\" sizes=\"(max-width: 724px) 100vw, 724px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e63716 elementor-widget elementor-widget-image\" data-id=\"0e63716\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_peche-724x1024-1.png\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"724\" height=\"1024\" src=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_peche-724x1024-1.png\" class=\"attachment-large size-large wp-image-18241\" alt=\"\" srcset=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_peche-724x1024-1.png 724w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_peche-724x1024-1-212x300.png 212w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_peche-724x1024-1-8x12.png 8w\" sizes=\"(max-width: 724px) 100vw, 724px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4d7e05 elementor-widget elementor-widget-image\" data-id=\"f4d7e05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_bateau-722x1024-1.png\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"722\" height=\"1024\" src=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_bateau-722x1024-1.png\" class=\"attachment-large size-large wp-image-18240\" alt=\"\" srcset=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_bateau-722x1024-1.png 722w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_bateau-722x1024-1-212x300.png 212w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/EEE_bateau-722x1024-1-8x12.png 8w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4515073 elementor-widget elementor-widget-image\" data-id=\"4515073\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/Deverssement_EEE-720x1024-1.jpg\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"1024\" src=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/Deverssement_EEE-720x1024-1.jpg\" class=\"attachment-large size-large wp-image-18239\" alt=\"\" srcset=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/Deverssement_EEE-720x1024-1.jpg 720w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/Deverssement_EEE-720x1024-1-211x300.jpg 211w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/09\/Deverssement_EEE-720x1024-1-8x12.jpg 8w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3c20a1f e-flex e-con-boxed e-con e-parent\" data-id=\"3c20a1f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8c05fb1 elementor-widget elementor-widget-button\" data-id=\"8c05fb1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/2024.10.31-ASL_-Bilan_-Lagarosiphon-major-1.pdf\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Download the final report<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f48467a elementor-widget elementor-widget-heading\" data-id=\"f48467a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le <i>Lagarosiphon major<\/i>What is it?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c1be73 elementor-widget elementor-widget-n-accordion\" data-id=\"4c1be73\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7980\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-7980\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Origin and description <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zM124 296c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h264c6.6 0 12 5.4 12 12v56c0 6.6-5.4 12-12 12H124z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zm144 276c0 6.6-5.4 12-12 12h-92v92c0 6.6-5.4 12-12 12h-56c-6.6 0-12-5.4-12-12v-92h-92c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h92v-92c0-6.6 5.4-12 12-12h56c6.6 0 12 5.4 12 12v92h92c6.6 0 12 5.4 12 12v56z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7980\" class=\"elementor-element elementor-element-4f97956 e-con-full e-grid e-con e-child\" data-id=\"4f97956\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b2b9144 elementor-widget elementor-widget-text-editor\" data-id=\"b2b9144\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Native to the African continent, Greater lagarosiphon is a fast-growing submerged aquatic plant.<\/li><li>It settles in the sediment and develops long stems up to 5 metres long.<\/li><li>Its leaves are narrow lanceolate, even linear and finely toothed. They are arranged in a spiral on the stem, except towards the top. The top of the stem is very dense and almost resembles a feather duster.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d1c43f elementor-widget elementor-widget-image\" data-id=\"6d1c43f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/2024.10.31-ASL_-Bilan_-Lagarosiphon-major-1.pdf\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1087\" src=\"https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1-768x1087.png\" class=\"attachment-medium_large size-medium_large wp-image-20639\" alt=\"\" srcset=\"https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1-768x1087.png 768w, https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1-212x300.png 212w, https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1-724x1024.png 724w, https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1-1086x1536.png 1086w, https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1-1447x2048.png 1447w, https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1-8x12.png 8w, https:\/\/asleman.org\/wp-content\/uploads\/2025\/07\/1ere-page2024.10.31-ASL_-Bilan_-Lagarosiphon-major_removed-1.png 1653w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7981\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7981\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Botanical information <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zM124 296c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h264c6.6 0 12 5.4 12 12v56c0 6.6-5.4 12-12 12H124z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zm144 276c0 6.6-5.4 12-12 12h-92v92c0 6.6-5.4 12-12 12h-56c-6.6 0-12-5.4-12-12v-92h-92c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h92v-92c0-6.6 5.4-12 12-12h56c6.6 0 12 5.4 12 12v92h92c6.6 0 12 5.4 12 12v56z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7981\" class=\"elementor-element elementor-element-eda5d7d e-con-full e-flex e-con e-child\" data-id=\"eda5d7d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ce69607 elementor-widget elementor-widget-text-editor\" data-id=\"ce69607\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Accidental introduction through cleaning and emptying of aquariums and garden ponds<\/li><li>Spread via water sports equipment to other bodies of water by pieces of plant left on water sports and leisure equipment (<a href=\"https:\/\/www.vd.ch\/fileadmin\/user_upload\/themes\/environnement\/faune_nature\/fichiers_pdf\/Especes_exotiques_envahissantes\/02_Animaux_exotiques_envahissants\/FicheEEA_A4_CANOE_PADDLE.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">leisure<\/a>,\u00a0<a href=\"https:\/\/www.vd.ch\/fileadmin\/user_upload\/themes\/environnement\/faune_nature\/fichiers_pdf\/Especes_exotiques_envahissantes\/02_Animaux_exotiques_envahissants\/FicheEEA_A4_PLONGEE.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">diving<\/a>,\u00a0<a href=\"https:\/\/www.vd.ch\/fileadmin\/user_upload\/themes\/environnement\/faune_nature\/fichiers_pdf\/Especes_exotiques_envahissantes\/02_Animaux_exotiques_envahissants\/FicheEEA_A4_PECHE_SPORTIVE.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">fishing<\/a>).<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7982\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7982\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> The danger it represents <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zM124 296c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h264c6.6 0 12 5.4 12 12v56c0 6.6-5.4 12-12 12H124z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zm144 276c0 6.6-5.4 12-12 12h-92v92c0 6.6-5.4 12-12 12h-56c-6.6 0-12-5.4-12-12v-92h-92c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h92v-92c0-6.6 5.4-12 12-12h56c6.6 0 12 5.4 12 12v92h92c6.6 0 12 5.4 12 12v56z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7982\" class=\"elementor-element elementor-element-8148304 e-con-full e-flex e-con e-child\" data-id=\"8148304\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-27919a4 elementor-widget elementor-widget-text-editor\" data-id=\"27919a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>For biodiversity<\/p><ul><li>Competitive: fast-growing, highly adaptable, no predators<\/li><li>High density: very dense, dominating the other species in the meadow<\/li><li>Blocking light: weakening native plants<\/li><li>Reduces water quality: decomposition of plants leading to a reduction in oxygen concentration<\/li><\/ul><p>Economically<\/p><ul><li>Slower flow\u00a0<strong>:\u00a0<\/strong>increase in silt deposition, which can have an impact on flood control<\/li><li>Interferes with navigation, locks and leisure activities: reduced tourist appeal due to unpleasant odours (decomposition)<\/li><li>Reduces the aesthetic value of banks, watercourses and ponds: uniform colonisation by the same species<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7983\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7983\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Possible confusion <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zM124 296c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h264c6.6 0 12 5.4 12 12v56c0 6.6-5.4 12-12 12H124z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zm144 276c0 6.6-5.4 12-12 12h-92v92c0 6.6-5.4 12-12 12h-56c-6.6 0-12-5.4-12-12v-92h-92c-6.6 0-12-5.4-12-12v-56c0-6.6 5.4-12 12-12h92v-92c0-6.6 5.4-12 12-12h56c6.6 0 12 5.4 12 12v92h92c6.6 0 12 5.4 12 12v56z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7983\" class=\"elementor-element elementor-element-39a9b55 e-con-full e-flex e-con e-child\" data-id=\"39a9b55\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da1b6b5 elementor-widget elementor-widget-text-editor\" data-id=\"da1b6b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"eael-accordion-list\"><div id=\"elementor-tab-content-2443\" class=\"eael-accordion-content clearfix\" data-tab=\"3\" aria-labelledby=\"la-solution\"><p>Le <em>Lagarosiphon major<\/em> can be confused with Canada Elodea (<em>Elodea canadensis<\/em>) and Nuttall's Elodea (<em>Elodea nuttallii<\/em>), which are also invasive.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-19105 aligncenter\" src=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/11\/lagarosiphon_confusion-279x300.png\" alt=\"\" width=\"511\" height=\"550\" srcset=\"https:\/\/asleman.org\/wp-content\/uploads\/2024\/11\/lagarosiphon_confusion-279x300.png 279w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/11\/lagarosiphon_confusion-768x825.png 768w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/11\/lagarosiphon_confusion-11x12.png 11w, https:\/\/asleman.org\/wp-content\/uploads\/2024\/11\/lagarosiphon_confusion.png 910w\" sizes=\"(max-width: 511px) 100vw, 511px\" \/><\/p><p>The difference lies in the arrangement of the leaves: for elodea, they are at the same level (whorled) in groups of 3, while for the <em>Lagarosiphon major<\/em> Its leaves are arranged in a spiral along the stem.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9cdba97 e-flex e-con-boxed e-con e-parent\" data-id=\"9cdba97\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a1e4a5 elementor-widget elementor-widget-heading\" data-id=\"7a1e4a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Media gallery<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77c69cb elementor-widget elementor-widget-gallery\" data-id=\"77c69cb\" data-element_type=\"widget\" data-e-type=\"widget\" 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class=\"elementor-gallery-item__content\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Recensement du Lagarosiphon major \u00c9valuation de la pr\u00e9sence de cette plante exotique envahissante aquatique dans les ports vaudois et valaisans l\u00e9maniques. ports recens\u00e9s 0 b\u00e9n\u00e9voles 0 demi-journ\u00e9es de terrain 0 Ce projet de science participative mandat\u00e9 par la\u00a0Division Biodiversit\u00e9 et paysage du Canton de Vaud et par le\u00a0Service des for\u00eats, de la nature et du\u00a0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"class_list":["post-18208","page","type-page","status-publish","hentry"],"acf":[],"ase":null,"_links":{"self":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/pages\/18208","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/comments?post=18208"}],"version-history":[{"count":58,"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/pages\/18208\/revisions"}],"predecessor-version":[{"id":20672,"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/pages\/18208\/revisions\/20672"}],"wp:attachment":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/media?parent=18208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}