{"id":5275,"date":"2012-02-16T15:15:31","date_gmt":"2012-02-16T20:15:31","guid":{"rendered":"https:\/\/extension.umaine.edu\/blueberries\/?page_id=5275"},"modified":"2024-02-06T14:24:30","modified_gmt":"2024-02-06T19:24:30","slug":"coltsfoot","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/blueberries\/weed-images\/herbaceous-broadleaf-weeds\/yellow-flowers\/coltsfoot\/","title":{"rendered":"Coltsfoot"},"content":{"rendered":"<p><em>Prepared by Jennifer L. D&#8217;Appollonio, Assistant Scientist, University of Maine, Orono, ME 04469. July 2011.<\/em><\/p>\n<p><strong>Scientific name:<\/strong> <em>Tussilago farfara <\/em>L.<\/p>\n<p><strong>Common name(s):<\/strong> coltsfoot, tash plant, ass&#8217;s foot, bull&#8217;s foot, butterbur, coughwort, farfara, foal&#8217;s foot, foalswort, horse foot, winter heliotrope<\/p>\n<p><strong>Links:<\/strong> <a href=\"https:\/\/plants.usda.gov\/home\/plantProfile?symbol=TUFA\" target=\"_blank\" rel=\"noopener noreferrer\">USDA PLANTS Profile<\/a>, <a href=\"https:\/\/gobotany.nativeplanttrust.org\/species\/tussilago\/farfara\/\" target=\"_blank\" rel=\"noopener noreferrer\">Go Botany<\/a><\/p>\n<p><em><strong>Images:<\/strong> (to see enlargements [PC]: click on image, then right click and choose &#8220;view image&#8221;)<\/em><\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 25%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-5275 gallery-columns-4 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-5-opt.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-5-opt-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Tussilago farfara flowers emerge before leaves\" aria-describedby=\"gallery-1-14838\" srcset=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-5-opt-150x150.jpg 150w, https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-5-opt-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-14838'>\n\t\t\t\tflowers emerge before leaves\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-3-opt.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-3-opt-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Tussilago farfara flower in early May\" aria-describedby=\"gallery-1-14837\" srcset=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-3-opt-150x150.jpg 150w, https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-3-opt-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-14837'>\n\t\t\t\tflower in early May\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-4-opt.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-4-opt-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Tussilago farfara flower and stem\" aria-describedby=\"gallery-1-14836\" srcset=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-4-opt-150x150.jpg 150w, https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2019\/01\/Tussilago-farfara-4-opt-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-14836'>\n\t\t\t\tflower stem detail\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2011\/07\/Tussilago-farfara-6.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2011\/07\/Tussilago-farfara-6-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Tussilago farfara emerging leaves\" aria-describedby=\"gallery-1-5276\" srcset=\"https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2011\/07\/Tussilago-farfara-6-150x150.jpg 150w, https:\/\/extension.umaine.edu\/blueberries\/wp-content\/uploads\/sites\/41\/2011\/07\/Tussilago-farfara-6-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5276'>\n\t\t\t\temerging leaves\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p><strong>Description:<\/strong><\/p>\n<p>&#8211; perennial<\/p>\n<p>-leaves are<\/p>\n<ul>\n<li>alternate<\/li>\n<li>basal<\/li>\n<\/ul>\n<p>&#8211; flowers in spring before leaves emerge<\/p>\n<p><strong>Habitat:<\/strong><\/p>\n<p>-moist sites<\/p>\n<p>-disturbed sites<\/p>\n<p>-shores of rivers<\/p>\n<p><strong>Natural History:<\/strong><\/p>\n<p>-native to Europe<\/p>\n<p>-introduced for its medical properties<\/p>\n<p>-herbal remedy<\/p>\n<p>-carcinogenicity of young, pre-blooming flowers of coltsfoot<\/p>\n<ul>\n<li>\u00a0due to senkirkine, a hepatotoxic pyrrolizidine alkaloid<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Sources:<\/p>\n<p>Go Botany. \u201cTussilago Farfara L.\u201d <i>Tussilago Farfara (Coltsfoot): Go Botany<\/i>, 2020, gobotany.nativeplanttrust.org\/species\/tussilago\/farfara\/.<\/p>\n<p>Hirono, I., Mori, H., &amp; Culvenor, C. C. (1976). Carcinogenic activity of coltsfoot, tussilago farfara l.<i> Gann, <\/i><i>67<\/i>(1), 125.<\/p>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Prepared by Jennifer L. D&#8217;Appollonio, Assistant Scientist, University of Maine, Orono, ME 04469. July 2011. Scientific name: Tussilago farfara L. Common name(s): coltsfoot, tash plant, ass&#8217;s foot, bull&#8217;s foot, butterbur, coughwort, farfara, foal&#8217;s foot, foalswort, horse foot, winter heliotrope Links: USDA PLANTS Profile, Go Botany Images: (to see enlargements [PC]: click on image, then right [&hellip;]<\/p>\n","protected":false},"author":218,"featured_media":0,"parent":6086,"menu_order":9,"comment_status":"closed","ping_status":"closed","template":"templates\/page-withsidebar.php","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-5275","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Coltsfoot - Cooperative Extension: Maine Wild Blueberries - University of Maine Cooperative Extension<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/extension.umaine.edu\/blueberries\/weed-images\/herbaceous-broadleaf-weeds\/yellow-flowers\/coltsfoot\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Coltsfoot - Cooperative Extension: Maine Wild Blueberries - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Prepared by Jennifer L. 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