En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Is <i>Bignonia capreolata</i> (Crossvine) known to cause skin irritation

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

Tuesday - July 23, 2013

From: Houston, TX
Region: Southwest
Topic: Poisonous Plants, Vines
Title: Is Bignonia capreolata (Crossvine) known to cause skin irritation
Answered by: Nan Hampton

QUESTION:

Is Crossvine (Bignonia capreolata L.) known to cause a rash? We are trying to identify the source of a rash-after-gardening, and have not seen any of the big three (poison ivy, poison oak, poison sumac). We do have some invasive vines growing in from a back alley, mostly morning glory. Some of the plants seem to be trumpet vine while some are similar in flower but have different leaves. The descriptions of cross vine seem closest so far to the vine in the locations of the work that preceded the rash.

ANSWER:

I could find no source that said Bignonia capreolata (Crossvine) caused dermatitis of any sort.  However, I did find several other vines that could be candidates.

The Botanical Dermatology Database (BoDD) says:

"A number of texts refer to dermatitis caused by handling the flowers or leaves of Campsis radicans ... but there appear to be no properly documented case reports."

The Samuel Roberts Noble Foundation also says that Campsis radicans causes dermatitis in some people.  They give one of its common names as "cow-itch vine". DermatologistsBlog.com also says that Campsis radicans can cause rash in some people.

The tubers can cause dermatitis in some people according to Xeriscape-Today.  

The BoDD gives information for several Cissus sp. that say they can cause dermatitis, but Cissus triofoliata is not mentioned.

According to the Poison Ivy, Oak, & Sumac Information Center, Cissus trifoliata can cause dermatitis in some people.

You can find more about people who are allergic to Cissus trifoliata on the blog Window on a Texas Wildscape.

University of California's Safe and Poisonous Garden Plants lists Gelsemium sempervirens with two toxicity classes:

1.  Major Toxicity: These plants may cause serious illness or death.

4.  Dermatitis: The juice, sap, or thorns of these plants may cause a skin rash or irritation.

 

From the Image Gallery


Crossvine
Bignonia capreolata

Crossvine
Bignonia capreolata

Trumpet creeper
Campsis radicans

Trumpet creeper
Campsis radicans

Trumpet creeper
Campsis radicans

Grape ivy
Cissus trifoliata

Grape ivy
Cissus trifoliata

Carolina jessamine
Gelsemium sempervirens

Carolina jessamine
Gelsemium sempervirens

More Poisonous Plants Questions

Non-native Star Jasmine poisonous to dogs from Dallas
May 20, 2013 - Is star jasmine poisonous to dogs?
view the full question and answer

Thorn in the hand in Benton KY
June 14, 2010 - My husband got stuck by a thorn on a thorn bush and the thorn was a goldish copper color. There is a knot on his hand and pain in his fingers to his elbow. Do you know what kind of bush this could b...
view the full question and answer

Non-poisonous, non-allergenic plants for privacy fence
March 15, 2012 - I'm looking to put in some plants to create a privacy fence against one side of my property. I'd like a mix of plants that grow well together in order to create a diverse look. I need something ever...
view the full question and answer

Is Penstemon cobaea poisonous
May 12, 2009 - Is Penstemon cobaea Nutt or Wild foxglove poisonous like real fox glove? It is on a playground and Im concerned that it may not be safe for children.
view the full question and answer

Is Artemesia ludoviciana allelopathic?
February 20, 2009 - I recently read that Artemisia ludoviciana is allelopathic to some other plants. I planted some last fall between a rusty blackhaw viburnum and a Mexican buckeye. Do you know whether it is phytotoxi...
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