En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - What caused bump after walk in woods from Ontario

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.

Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Monday - July 25, 2011

From: Kitchener, ON
Region: Canada
Topic: Poisonous Plants
Title: What caused bump after walk in woods from Ontario
Answered by: Barbara Medford

QUESTION:

I recently went for a walk in the woods near a stream. When I got to the river my leg had a little bump. It wasn't itching. I got home, it swelled even bigger. Can you tell me what plant I bumped into? Thank you

ANSWER:

Here is a list of the Poisonous Trees and Shrubs of Ontario. All three listed are native to Ontario:

Menispermum canadense (Common moonseed) - only berries are toxic if eaten. Pictures.

Toxicodendron vernix (Poison sumac) - all parts poisonous. Pictures 

Toxicodendron radicans (Eastern poison ivy) - all parts poisonous. Pictures

Our personal opinion is that you probably were stung  by some insect. Being in the woods near a stream, the best guess is a mosquito, but you could also have brushed against a plant with a spider or ants on it that didn't take well to your intrusion.

Our advice: if it has swollen more, spread to a rash, or you are having allergic reactions, see a doctor.

 

 

 

 

More Poisonous Plants Questions

Are buckbrush (coralberry) berries poisonous?
December 20, 2011 - Are the berries on buckbrush (Symphoricarpos orbiculatus) poisonous to humans?
view the full question and answer

GMO/GE crops killing wildflowers and insects
October 31, 2008 - Hi, I've read where GMO/GE crops in other countries were killing the wildflowers and insects adjacent to those fields. Have you had any reports of this North America. Best regards.
view the full question and answer

Are the berries of Gun bumelia poisonous to dogs from Willow Park TX
February 13, 2014 - We have been told we have a Bumelia Lanuginosa (Chittamwood) tree in our yard. My dog has been eating the berries. (She has had stomach issues for several months and only recently found out she has ...
view the full question and answer

Shrubs that non-toxic to horses but that they won't eat
October 29, 2011 - I am looking for a low maintenance, low water, green shrub that horses won't eat and will not be toxic to them. I want to hide my neighbors corral and keep down dust on my side. The horses have "l...
view the full question and answer

Plants for water park
January 03, 2013 - Hi, I usually have no problem locating the right species for a given situation, but I may need some advice for this. I am looking for plants -- from annual & perennial flowers to shrubs and small t...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center