En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

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

Plant identification in Georgia
September 14, 2011 - I saw the same question that I was going to ask about the plant that folds its leaves at dusk, with sparse branches, rapid growth, small yellow flowers and long (whisker-like, but do not appear to be ...
view the full question and answer

Plants to replace poison ivy in Kingsport TN
July 03, 2009 - Am in the process of killing off poison ivy that is growing vigorously. What do you recommend to plant in its place. I don't want to leave area open to other invasive plants. (Yes, poison ivy is a...
view the full question and answer

Dwarf oyster plant dying in Sunrise FL
July 06, 2012 - WHAT WOULD BE KILLING MY DWARF OYSTER PLANTS
view the full question and answer

Safety of Baccharis halimifolia (groundsel tree) for parrots
April 25, 2007 - Do you have any information on the possible toxicity of Baccharis halimifolia (Groundsel tree, sea myrtle) most especially the trunks/branches? We have it all over our property, and I'm curious if it...
view the full question and answer

Need information about the toxicity of some newly acquired plants in Austin, TX
January 04, 2010 - Hi Mr. Smarty Plants, I just got a Carolina Buckthorn tree, a silk tassel, a wafer ash, and an escarpment black cherry tree. I wonder if any of these trees produce berries that would be poisonous to ...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center