{"id":13632,"date":"2018-08-06T11:48:50","date_gmt":"2018-08-06T11:48:50","guid":{"rendered":"http:\/\/www.uwb.edu\/?p=13632"},"modified":"2026-03-12T16:53:18","modified_gmt":"2026-03-12T16:53:18","slug":"fraxinus-latifolia","status":"publish","type":"page","link":"https:\/\/www.uwb.edu\/wetland\/plants\/fraxinus-latifolia","title":{"rendered":"Oregon Ash"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><em>Fraxinus latifolia<\/em> &#8211; Oregon ash<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">At a Glance:<\/h3>\n\n\n\n<figure class=\"wp-block-image alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"520\" src=\"https:\/\/www.uwb.edu\/wetland\/wp-content\/uploads\/sites\/21\/2023\/06\/oregon-ash-leaves-by-sarah-verlinde.png\" alt=\"Healthy and wilted Oregon ash leaves\" class=\"wp-image-15862\" srcset=\"https:\/\/www.uwb.edu\/wetland\/wp-content\/uploads\/sites\/21\/2023\/06\/oregon-ash-leaves-by-sarah-verlinde.png 400w, https:\/\/www.uwb.edu\/wetland\/wp-content\/uploads\/sites\/21\/2023\/06\/oregon-ash-leaves-by-sarah-verlinde-231x300.png 231w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Family:  Oleaceae<\/li>\n\n\n\n<li>Plant Type:  Small tree<\/li>\n\n\n\n<li>Distribution:  Pacific Coast, California to British Columbia, mostly south-west washington<\/li>\n\n\n\n<li>Habitat:  fertile moist soils near rivers and lakes, wetlands, and prairies <\/li>\n\n\n\n<li>Height: 25m<\/li>\n\n\n\n<li>Flower\/Fruits:  small and appear before the leaves. They range between green and reddish-orange. Fruits develop into hanging dried samara.<\/li>\n\n\n\n<li>Flowering Season: June-August<\/li>\n\n\n\n<li>Leaves: Leaves are compound, comprised of 5-7 leaflets, oppositely arranged. <\/li>\n\n\n\n<li>Generation: Perennial<\/li>\n\n\n\n<li>Notable feature: yellow leaves during fall. Tree is oppositely branched. <\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Restoration and Conservation<\/h3>\n\n\n\n<p>Seeds start forming after the tree is around 30 years old and are dispersed by the wind. The trees are commonly used as an ornamental tree in PNW cities. It is used in restoration projects establishing quickly in moist areas like the edges of wetlands.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ethnobotany<\/h3>\n\n\n\n<p>Oregon Ash is commonly used as firewood because it splits easily and has a high heat value. The wood is hard and strong and used in furniture, panelling, flooring, pallets, and wood crates. Native Americans used the tree to build tools like axe handles, canoe paddles, and tobacco pipes. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">References and Resources<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"http:\/\/naeb.brit.org\/uses\/search\/?string=Fraxinus+latifolia\">NAEB: Fraxinus latifolia<\/a><\/li>\n\n\n\n<li><a href=\"http:\/\/nativeplantspnw.com\/oregon-ash-fraxinus-latifolia\">Native Plants PNW: Oregon Ash Fraxinus latifolia<\/a><\/li>\n\n\n\n<li><a href=\"http:\/\/owic.oregonstate.edu\/oregon-ash-fraxinus-latifolia\">OSU: Oregon Ash Fraxinus Latifolia <\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.srs.fs.usda.gov\/pubs\/misc\/ag_654\/volume_2\/fraxinus\/latifolia.htm\">USDA: Fraxinus latifolia<\/a><\/li>\n\n\n\n<li><a href=\"http:\/\/biology.burke.washington.edu\/herbarium\/imagecollection\/taxon.php?Taxon=Fraxinus%20latifolia\">WTU Image Herbarium: Fraxinus latifolia<\/a><\/li>\n<\/ul>\n\n\n\n<p><em>This article was written by Sarah Verlinde.  For questions regarding the UWB\/CC Plant Tour, contact Sarah at <a href=\"mailto:severlin@uw.edu?subject=Native%20plant%20tour%20inquiry\">severlin@uw.edu<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fraxinus latifolia &#8211; Oregon ash At a Glance: Restoration and Conservation Seeds start forming after the tree is around 30 years old and are dispersed by the wind. The trees are commonly used as an ornamental tree in PNW cities. It is used in restoration projects establishing quickly in moist areas like the edges of&#8230;<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":13590,"menu_order":31,"comment_status":"open","ping_status":"open","template":"","meta":{"_acf_changed":false,"_is_archived":false,"_archived_contact_email":"","footnotes":""},"class_list":["post-13632","page","type-page","status-publish","hentry"],"acf":{"related_links":{"toggle_visibility":false,"link_1":"","link_2":"","link_3":"","link_4":"","link_5":""},"highlight_box":{"toggle_visibility":false,"title":"","content":"","button":"","button_style":"angled-purple-button","button_screen_reader_text":""},"contact_type_1":{"toggle_visibility":true,"contact_title":"Tyson Kemper","email":"wildhair@uw.edu","phone":"","box":"","address_line_1":"","address_line_2":"","location":""},"contact_type_2":{"toggle_visibility":false,"contact_title":"","email":"","phone":"","box":"","address_line_1":"","address_line_2":"","location":""},"social_media":{"toggle_visibility":false,"facebook_url":"","instagram_url":"","linkedin_url":"","twitter_url":"","youtube_url":""},"blog_archive_sidebar_visibility":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Oregon Ash - North Creek Wetland<\/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:\/\/www.uwb.edu\/wetland\/plants\/fraxinus-latifolia\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oregon Ash - North Creek Wetland\" \/>\n<meta property=\"og:description\" content=\"Fraxinus latifolia &#8211; Oregon ash At a Glance: Restoration and Conservation Seeds start forming after the tree is around 30 years old and are dispersed by the wind. 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