Host an Event Volunteer Join Tickets

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

Saturday - June 20, 2015

From: Austin, TX
Region: Southwest
Topic: Plant Identification, Vines
Title: Identity of fleshy three-leaved vine in Central Texas
Answered by: Nan Hampton

QUESTION:

I have a 3 leaved evergreen vine, that I assume is a central Texas native, growing in my yard in a non irrigated mostly shady spot. It has a strong odor when touched and looks and feels like a succulent. I have not been able to find it in any book or online. Any ideas on what it could be? It is definitely not poison ivy or Virginia Creeper.

ANSWER:

This sounds like Cissus trifoliata (Grape ivy).  Another common name is cowitch vine. It has three-lobed fleshy leaves that emit a strong odor when crushed.  It is a member of the Family Vitaceae (Grape Family); however, its berries are not edible.  They contain toxic levels of oxalic acid, according to Delena Tull in Edible and Useful Plants of the Southwest:  Texas, New Mexico and Arizona.  2013.  University of Texas Press.

 

From the Image Gallery


Cow-itch vine
Cissus trifoliata

Cow-itch vine
Cissus trifoliata

More Vines Questions

No Grapes on Vines in Sonora, CA
May 31, 2011 - We have lived in our home since 2002 and have a grapevine that grows beautiful green lush leaves and vines every year but never has produced grapes. What can I do to get some grapes on this vine?
view the full question and answer

Care and fruiting time of pumpkins
October 06, 2007 - This is my first year growing pumpkin. I have a good vine with flowers now & then, but I still don't see a little pumpkin forming. What am I doing wrong?
view the full question and answer

Eliminating kudzu from Richmond KY
March 26, 2014 - I live in Richmond KY, Kirksville area. I have noticed that Kudzu has started to grow in my patch of land next to the creek. How can I get rid of this before it becomes a big problem?
view the full question and answer

Transplanting a grapevine in San Antonio
May 20, 2009 - I planted a small grapevine that is growing well. I want to move it, (only tiny green grapes now, should be merlot) and wondering if I can do it now, mid May, or do I have to wait until fall? Not real...
view the full question and answer

Problems with non-native Potato vine from Morgan Hill CA
June 13, 2011 - Greetings from Morgan Hill. CA. I have moved into a home that has a fairly mature (10 years +/-) Potato Tree which has some blue/purple flowers but very few new leaves, it looks almost barren. It gets...
view the full question and answer

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