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?


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
3 ratings

Wednesday - July 08, 2009

From: Fernandina Beach, FL
Region: Southeast
Topic: Vines
Title: Vine like blackberry with 3 leaves & thorns in Florida
Answered by: Barbara Medford


What vine looks like a blackberry vine but has three leaves and thorns?


We took a look at Toxicodendron radicans (eastern poison ivy), which has 3 leaves and old vines have a hairy appearance, but not thorns. We also looked at some of the briars, including Mimosa microphylla (littleleaf sensitive-briar). The briars all seem to have pinnate leaves, but they do have thorns. Another possibility is Smilax bona-nox (saw greenbrier), but it doesn't appear to have three leaves together. So, unless it's one of those, we're stumped. Please go to our Mr. Smarty Plants Plant Identification page, and follow the instructions for submitting a photo, with information on where the plant was found, etc. After we receive that, we'll try to identify the plant.

Toxicodendron radicans

Toxicodendron radicans

Mimosa microphylla

Smilax bona-nox



More Vines Questions

How to get rid of invasive wild bean vine
July 27, 2008 - An invasive vine has taken over our beds, mostly wherever we have asiatic jasmine ground cover. We seem to be the only people nearby with this problem, and the volunteers with our local master gardene...
view the full question and answer

Alamo vine not blooming in Liberty Hill TX
July 16, 2011 - My Alamo vine is not blooming. It is planted in full sun. The vine looks healthy. Should I fertilize, if so, with what.
view the full question and answer

Identity of vine with green flowers
November 03, 2012 - What is this trailing plant with half inch green flowers with gold metallic centers? Looks like a milkweed plant or gourd plant of some kind. I found it off Hamilton Pool road. West of Austin TX
view the full question and answer

Purchase source of Coral honeysuckle from New Boston TX
April 21, 2012 - I have been unable to find a supplier in the listings on your website for Lonicera Sempervirens. Many of them had a variety of different plants listed under this name but none were the 20' species. ...
view the full question and answer

What thorny vine grows rapidly in Pensacola?
May 06, 2013 - What thorny vine grows rapidly in Pensacola?
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.
© 2015 Lady Bird Johnson Wildflower Center