Host an Event Volunteer Join Tickets

Your gift keeps resources like this database thriving!

DONATE TODAY

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

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
2 ratings

Tuesday - May 24, 2011

From: Miami, FL
Region: Southeast
Topic: Poisonous Plants
Title: is the rainbow Eucalyptus poisonous to horses in FL?
Answered by: Jimmy Mills

QUESTION:

Is the Rainbow Eucalyptus Tree poisonous to horses?

ANSWER:

When we get questions about toxic plants, we consult a series of databases in search of answers (see below)

Toxic Plants Databases

 * The Merck Veterinary Manual 

ASPCA   dogs & cats  

*ASPCA- horses

Wikipedia

University of Arkansas 

University of Illinois  (common names only)   

Plants Poisonous to Horses, An Australian Field Guide                                            

Toxic Plants of Texas

*Poisonous Plants of North Carolina   

Cornell University Plants Poisonous to Livestock

University of Pennsylvania Poisonous Plants

Canadian Poisonous Plants Information System

*California Poison Action Line

Manes and Tales Organization

IFAS Extension

Four of these  (see asterisks *) list Eucalyptus sp. as being toxic to horses. I don’t know why the plant is not listed in the other databases.
While the Rainbow Eucalyptus Eucalyptus deglupta isn’t listed specifically, I would take steps to see that it isn’t available for horses to eat. The younger leaves seem to conain more of the toxic agent.
 

More Poisonous Plants Questions

Trimming non-native sago from Fresno CA
September 10, 2012 - I have a sago plant, fronds are hanging over into street, can the fronds themselves be trimmed back without removing the whole frond?
view the full question and answer

Identification of shrub/small tree with small purple fruit
July 31, 2013 - Hi! I have a tree/bush that has come up on its own in the backyard. This year it set what looks like small purple plums. Is there any chance that they might be poisonous?
view the full question and answer

Root cuttings for non-native, poisonous oleander from Mobile AL
December 16, 2010 - I need help with best method to root cuttings from my oleander tree. Please advise best method. Thanks
view the full question and answer

Western Poison Oak Sap Transfer
January 26, 2016 - My partner is a park ranger and constantly exposed to poison oak. He gets infected sometimes but mostly seems to tolerate it pretty well. I, on the other hand, keep getting reinfected with it, all ove...
view the full question and answer

Native plants and possible poisonous plants in Aguanga, California
August 31, 2009 - I am in the process of moving to Aguanga California. I am interested in knowing what the native plants are in that area. Are they poison to animals and kids?
view the full question and answer

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