{"id":1586,"date":"2013-06-06T12:12:47","date_gmt":"2013-06-06T16:12:47","guid":{"rendered":"http:\/\/naturalcrooks.com\/rambles\/?p=1586"},"modified":"2025-05-24T16:33:18","modified_gmt":"2025-05-24T20:33:18","slug":"be-careful-poisonous-plants-ivy-giant-hogweed","status":"publish","type":"post","link":"https:\/\/naturalcrooks.com\/rambles\/be-careful-poisonous-plants-ivy-giant-hogweed\/","title":{"rendered":"Be Careful Where You Walk in the Woods: Poisonous Plants to Avoid"},"content":{"rendered":"<p>As spring progresses and the green growing plants shoot up to new heights, I have made two unexpected and somewhat dangerous discoveries in parks I visit. Yesterday I met another person enjoying the natural sights and warned him that the lush greenery inches from his bare legs was poisonous. He hadn\u2019t known. In case you don\u2019t know either, here\u2019s what to watch out for.<\/p>\n<h2>Giant Hogweed: A Potentially Serious Plant Menace that\u2019s New to Ontario<\/h2>\n<p>When I was growing up, the two plants we learned to avoid were Poison Ivy and Poison Oak. A new pest has arrived in Ontario, however. It\u2019s called Giant Hogweed. When mature, it can tower 4-6 m (12-18 feet) in height. The leaves are enormous. Its flowers are large umbrellas of small white blooms, looking a bit like Queen Anne\u2019s Lace.<\/p>\n<p><a href=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoungonNaturalCrooksDotCom.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1598\" src=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoungonNaturalCrooksDotCom-400x287.jpg\" alt=\"Photo of Giant Hogweed Young on NaturalCrooksDotCom\" width=\"400\" height=\"287\" srcset=\"https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoungonNaturalCrooksDotCom-400x287.jpg 400w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoungonNaturalCrooksDotCom-200x143.jpg 200w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoungonNaturalCrooksDotCom-417x300.jpg 417w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoungonNaturalCrooksDotCom.jpg 750w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>However, like all plants, Giant Hogweed starts small. In fact, it is a biennial and doesn\u2019t usually bloom until its second year. It was two of these younger plants that I spotted recently in among the huge burdock leaves in Lakeside Park.<\/p>\n<p>Giant Hogweed can be genuinely dangerous. If the sap comes into contact with skin, it reacts. A few days later, particularly if that damaged skin is exposed to sunlight, a horrible blistering rash develops. It can cause serious damage and permanent scarring. Because it takes several days to develop a person may not even know they have been exposed.<\/p>\n<p>Gruesome photos of affected persons can be looked up on the internet.<\/p>\n<p><a href=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem1onNaturalCrooksDotCom.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1599\" src=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem1onNaturalCrooksDotCom-144x200.jpg\" alt=\"Photo of Giant Hogweed Stem1 on NaturalCrooksDotCom\" width=\"144\" height=\"200\" srcset=\"https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem1onNaturalCrooksDotCom-144x200.jpg 144w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem1onNaturalCrooksDotCom-288x400.jpg 288w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem1onNaturalCrooksDotCom-216x300.jpg 216w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem1onNaturalCrooksDotCom.jpg 750w\" sizes=\"auto, (max-width: 144px) 100vw, 144px\" \/><\/a>\u00a0 <a href=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem2onNaturalCrooksDotCom.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1600\" src=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem2onNaturalCrooksDotCom-176x200.jpg\" alt=\"Photo of Giant Hogweed Stem2 on NaturalCrooksDotCom\" width=\"176\" height=\"200\" srcset=\"https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem2onNaturalCrooksDotCom-176x200.jpg 176w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem2onNaturalCrooksDotCom-352x400.jpg 352w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem2onNaturalCrooksDotCom-264x300.jpg 264w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedStem2onNaturalCrooksDotCom.jpg 750w\" sizes=\"auto, (max-width: 176px) 100vw, 176px\" \/><\/a><\/p>\n<p>While it\u2019s difficult to imagine accidentally trampling down or against a plant taller than you are, it is quite possible to walk bare-legged into it while it\u2019s still only two feet tall. I nearly did. It\u2019s only because I prefer to step around plants rather than risk damaging them by treading on them that I noticed the young Hogweed in the first place.<\/p>\n<p>You can see photos of some other plants often mistaken for <a href=\"https:\/\/www.inaturalist.org\/taxa\/130228-Heracleum-mantegazzianum\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Giant Hogweed on the iNaturalist.org website<\/strong><\/a> if you click on the Similar Species tab.<\/p>\n<p>Because people could go blind from extreme exposure to Giant Hogweed, and because it is still a new invasive, most regions are trying to exterminate the plants before they spread and settle in.<\/p>\n<p><a href=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoung2onNaturalCrooksDotCom.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1601\" src=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoung2onNaturalCrooksDotCom-400x382.jpg\" alt=\"Photo of Giant Hogweed Young2 on NaturalCrooksDotCom\" width=\"400\" height=\"382\" srcset=\"https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoung2onNaturalCrooksDotCom-400x382.jpg 400w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoung2onNaturalCrooksDotCom-200x191.jpg 200w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoung2onNaturalCrooksDotCom-313x300.jpg 313w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/GiantHogweedYoung2onNaturalCrooksDotCom.jpg 750w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<h2>Less Deadly but Much More Itchy Poison Ivy is Common throughout Southern Ontario<\/h2>\n<p>Poison ivy is quite common in most parks I\u2019ve visited in southern Ontario that have naturalized areas. Several species of birds eat poison ivy berries and drop the seeds in new spots as they fly. Poison ivy also comes in a variety of styles and shapes that make it easy to overlook.<\/p>\n<p><a href=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvynottoothyonNaturalCrooksDotCom.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1593\" src=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvynottoothyonNaturalCrooksDotCom-400x338.jpg\" alt=\"Photo of Poison Ivy not toothy on NaturalCrooksDotCom\" width=\"400\" height=\"338\" srcset=\"https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvynottoothyonNaturalCrooksDotCom-400x338.jpg 400w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvynottoothyonNaturalCrooksDotCom-200x169.jpg 200w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvynottoothyonNaturalCrooksDotCom-354x300.jpg 354w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvynottoothyonNaturalCrooksDotCom.jpg 750w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p style=\"padding-left: 30px;\"><em>Note the almost toothless leaves on THIS plant.<\/em><\/p>\n<p>Here are some views of the bumper crop growing in Arkendo Park, Oakville. The most luxurious plants are along the edge of the beach where the creek meets the Lake.<\/p>\n<p><a href=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvyToothyonNaturalCrooksDotCom.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1594\" src=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvyToothyonNaturalCrooksDotCom-400x347.jpg\" alt=\"Photo of Poison Ivy Toothy on NaturalCrooksDotCom\" width=\"400\" height=\"347\" srcset=\"https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvyToothyonNaturalCrooksDotCom-400x347.jpg 400w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvyToothyonNaturalCrooksDotCom-200x173.jpg 200w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvyToothyonNaturalCrooksDotCom-345x300.jpg 345w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvyToothyonNaturalCrooksDotCom.jpg 750w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p style=\"padding-left: 30px;\"><em>Note the quite toothy leaf on THIS plant.<\/em><\/p>\n<p>Exposure to poison ivy sap results in large water-filled blisters and a horrible intense itching. Scratching can move the oils to other parts of the body increasing the problem. Unfortunately, if your dog goes bounding through poison ivy and gets the sap on its fur, when you pet your dog, you can unknowingly get the sap on your hands and then elsewhere on your body. Another good reason to keep your dog leashed.<\/p>\n<p><a href=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvywithOtherFlowersonNaturalCrooksDotCom.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1595\" src=\"http:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvywithOtherFlowersonNaturalCrooksDotCom-307x400.jpg\" alt=\"Photo of Poison Ivy with Other Flowers on NaturalCrooksDotCom\" width=\"307\" height=\"400\" srcset=\"https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvywithOtherFlowersonNaturalCrooksDotCom-307x400.jpg 307w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvywithOtherFlowersonNaturalCrooksDotCom-153x200.jpg 153w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvywithOtherFlowersonNaturalCrooksDotCom-230x300.jpg 230w, https:\/\/naturalcrooks.com\/rambles\/wp-content\/uploads\/2013\/06\/PoisonIvywithOtherFlowersonNaturalCrooksDotCom.jpg 692w\" sizes=\"auto, (max-width: 307px) 100vw, 307px\" \/><\/a><\/p>\n<p style=\"padding-left: 30px;\"><em>Here the Poison Ivy is growing entangled with an attractive wildflower. Sneaky!<\/em><\/p>\n<p>Parks departments cannot control poison ivy everywhere so you really do have to learn how to recognize it and stay away.<\/p>\n<p><strong>Related Reading<br \/>\n<\/strong><\/p>\n<ul>\n<li><a title=\"What\u2019s Mewing Like a Cat in the Lakeside Park Woods Today?\" href=\"http:\/\/naturalcrooks.com\/rambles\/what-bird-is-mewing-like-cat-lakeside-park-woods\/\"><strong>What\u2019s Mewing Like a Cat in the Lakeside Park Woods Today?<\/strong><\/a><\/li>\n<\/ul>\n<p><strong>Join In<br \/>\n<\/strong>Have you had a run-in with a poisonous plant? What steps would you suggest to save other souls? Please share your experiences with a comment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here are two plants to watch out for when on a walk through a natural area in southern Ontario. Both cause nasty rashes, one of them can cause permanent scarring. <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,11],"tags":[165,33,164],"class_list":["post-1586","post","type-post","status-publish","format-standard","hentry","category-focus","category-rambles","tag-giant-hogweed","tag-plants","tag-poison-ivy"],"_links":{"self":[{"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/posts\/1586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/comments?post=1586"}],"version-history":[{"count":15,"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/posts\/1586\/revisions"}],"predecessor-version":[{"id":9781,"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/posts\/1586\/revisions\/9781"}],"wp:attachment":[{"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/media?parent=1586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/categories?post=1586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/naturalcrooks.com\/rambles\/wp-json\/wp\/v2\/tags?post=1586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}