Contact Us Host an Event Volunteer Join

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
1 rating

Monday - March 24, 2014

From: The Woodlands, TX
Region: Southwest
Topic: Poisonous Plants, Problem Plants
Title: Defense against poison ivy from The Woodlands TX
Answered by: Barbara Medford

QUESTION:

Hi and thank you in advance for your help. My husband is allergic to Poison Ivy, Oak, Sumac, or something in our yard. We need someone who is very knowledgeable to come and identify any poisonous plants etc. in our yard. We live in The Woodlands, Texas. Would you please recommend someone who we could contact to help us.

ANSWER:

We are sorry, we have no contacts on the sort of professionals you are looking for. Even if we searched the Internet for someone who does that kind of work, we could hardly recommend a business with whom we had no experience. You are not alone in this problem. Here are two previous answers on how to protect yourself and how (hopefully) to get rid of the stuff.

Previous answer from Blanco TX

Previous answer from Huntsville NC

Here are the three plants you mentioned. You will note they all belong to the genus Toxicodendron:

Toxicodendron radicans (Eastern poison ivy) (also sometimes referred to as "poison oak"

Toxicodendron radicans (Eastern poison ivy)

Toxicodendron vernix (Poison sumac)

 

From the Image Gallery


Eastern poison ivy
Toxicodendron radicans

Eastern poison ivy
Toxicodendron radicans

Poison sumac
Toxicodendron vernix

More Problem Plants Questions

Why is my Texas mountain laurel growing so slowly?
July 22, 2015 - I have a Mountain Laurel, Anacacho Orchid Tree and Desert Willow on the northern side of our yard - all three get full sun most of the day. The Mountain Laurel is closer to the east side. The other...
view the full question and answer

Eliminating unwanted vine on arbor in San Francisco
November 20, 2012 - There is a vine growing on our arbor, it has sickle-shaped pods and is crushing the arbor, how do we get rid of it?
view the full question and answer

Eradicating Cucurbita foetidissima (wild gourd) in California
August 23, 2013 - I live in San Diego County where the wild gourd/stink gourd roams freely and quickly. Any suggestions on how to eradicate. It is extremely invasive and nothing has worked! Thank you,
view the full question and answer

A method for killing nandina and ligustrum with herbicide
October 19, 2012 - Is there an effective herbicide that can be painted on the stumps of Nandina and Wax-leaf ligustrum to keep them from growing back? Thanks so much!
view the full question and answer

Getting rid of bermudagrass
July 13, 2010 - How do I get rid of bermuda grass in my San Augustine grass?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.