{"id":198,"date":"2020-06-22T11:39:12","date_gmt":"2020-06-22T18:39:12","guid":{"rendered":"https:\/\/wordpress.viu.ca\/biol223\/?page_id=198"},"modified":"2020-07-08T10:55:14","modified_gmt":"2020-07-08T17:55:14","slug":"crataegus-monogyna","status":"publish","type":"page","link":"https:\/\/wordpress.viu.ca\/biol223\/crataegus-monogyna\/","title":{"rendered":"Crataegus monogyna"},"content":{"rendered":"\n<p>Family: Rosaceae<\/p>\n\n\n\n<p>Common name: Common hawthorn<\/p>\n\n\n\n<p>E-flora BC: <a href=\"https:\/\/linnet.geog.ubc.ca\/Atlas\/Atlas.aspx?sciname=Crataegus%20monogyna\">https:\/\/linnet.geog.ubc.ca\/Atlas\/Atlas.aspx?sciname=Crataegus%20monogyna<\/a><\/p>\n\n\n\n<p>Wikipedia: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Crataegus_monogyna\">https:\/\/en.wikipedia.org\/wiki\/Crataegus_monogyna<\/a><\/p>\n\n\n\n<p>Common hawthorn is a serious invasive exotic plant in our region. It grows as a large shrub or small tree, with thorny dense branches. It can form dense thickets that outcompete native plants. <\/p>\n\n\n\n<p>It generally has a single stem with a dense crown of branches.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"http:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/IMG_5313_smaller-768x1024.jpeg\" alt=\"\" class=\"wp-image-240\" srcset=\"https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/IMG_5313_smaller-768x1024.jpeg 768w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/IMG_5313_smaller-225x300.jpeg 225w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/IMG_5313_smaller-1152x1536.jpeg 1152w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/IMG_5313_smaller-788x1051.jpeg 788w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/IMG_5313_smaller.jpeg 1500w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption>Note the dense tangled bushy crown, and straggling branches emerging from the crown &#8211; this is a typical shape of common hawthorn. This specimen was photographed in Third Street Park in Nanaimo, near VIU. Common hawthorn is highly abundant in this area, significantly replacing native vegetation.<\/figcaption><\/figure>\n\n\n\n<p>The foliage of common hawthorn is dense. Leaves are deeply lobed, but quite variable. Some specimens have very deeply lobed leaves, others less so. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"599\" src=\"http:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/800px-Eenstijlige_meidoorn_Crataegus_monogyna_branch.jpg\" alt=\"\" class=\"wp-image-200\" srcset=\"https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/800px-Eenstijlige_meidoorn_Crataegus_monogyna_branch.jpg 800w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/800px-Eenstijlige_meidoorn_Crataegus_monogyna_branch-300x225.jpg 300w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/800px-Eenstijlige_meidoorn_Crataegus_monogyna_branch-768x575.jpg 768w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/800px-Eenstijlige_meidoorn_Crataegus_monogyna_branch-788x590.jpg 788w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption>Deeply lobed leaves, and thorns of common hawthorn. Thorns are most pronounced on younger stems. Photo credit: Eenstijlige Meidoorn via Wikimedia<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"663\" src=\"http:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-2-1024x663.jpg\" alt=\"\" class=\"wp-image-195\" srcset=\"https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-2-1024x663.jpg 1024w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-2-300x194.jpg 300w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-2-768x498.jpg 768w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-2-1536x995.jpg 1536w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-2-788x511.jpg 788w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-2.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Deeply lobed leaves and clusters of white 5-petaled flowers of common hawthorn in spring. The flowers are quite fragrant, but many people find the smell unpleasant. Photo credit: Lynda Stevens<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"790\" src=\"http:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-3-1024x790.jpg\" alt=\"\" class=\"wp-image-196\" srcset=\"https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-3-1024x790.jpg 1024w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-3-300x232.jpg 300w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-3-768x593.jpg 768w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-3-1536x1186.jpg 1536w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-3-788x608.jpg 788w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-3.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Clusters of white flowers in spring. Note the 5-petaled flower so common among members of the Rosaceae family (e.g. compare to <em><a rel=\"noreferrer noopener\" href=\"https:\/\/wordpress.viu.ca\/biol223\/rubus-parviflorus\/\" target=\"_blank\">Rubus parviflorus <\/a><\/em>or <em><a href=\"https:\/\/wordpress.viu.ca\/biol223\/rosa-nutkana\/\" target=\"_blank\" rel=\"noreferrer noopener\">Rosa nutkana<\/a><\/em>). Note the deeply lobed leaves. Photo credit: Lynda Stevens<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"688\" src=\"http:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-8-1024x688.jpg\" alt=\"\" class=\"wp-image-197\" srcset=\"https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-8-1024x688.jpg 1024w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-8-300x202.jpg 300w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-8-768x516.jpg 768w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-8-1536x1032.jpg 1536w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-8-788x529.jpg 788w, https:\/\/wordpress.viu.ca\/biol223\/files\/2020\/06\/hawthorne-8.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Distinctive clusters of red fruit of common hawthorn. The fruit is used as a winter food for many birds, which contributes to the spread of the plant in our landscape. Photo credit: Lynda Stevens<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Family: Rosaceae Common name: Common hawthorn E-flora BC: https:\/\/linnet.geog.ubc.ca\/Atlas\/Atlas.aspx?sciname=Crataegus%20monogyna Wikipedia: https:\/\/en.wikipedia.org\/wiki\/Crataegus_monogyna Common hawthorn is a serious invasive exotic plant in our region. It grows as a large shrub or small [&hellip;]<\/p>\n","protected":false},"author":2649,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-198","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/pages\/198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/users\/2649"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/comments?post=198"}],"version-history":[{"count":4,"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/pages\/198\/revisions"}],"predecessor-version":[{"id":725,"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/pages\/198\/revisions\/725"}],"wp:attachment":[{"href":"https:\/\/wordpress.viu.ca\/biol223\/wp-json\/wp\/v2\/media?parent=198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}