En Español

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
Not Yet Rated

Sunday - May 31, 2009

From: Ashtabula, OH
Region: Midwest
Topic: Trees
Title: Are white pine trees toxic to horses?
Answered by: Nan Hampton

QUESTION:

Are white pine trees toxic to horses?

ANSWER:

A quick search through the poisonous plant databases listed below found only pine tree species, Pinus ponderosa (ponderosa pine), on any of the lists.  None of the pines with the common name that includes 'white pine' (see below) was on any of the lists so I think we can assume that white pine will not be dangerous for your horses.  You might keep these databases in mind for any other plants you are concerned about for your horses—or yourself.

WHITE PINES:

Pinus strobus (eastern white pine) has a distribution that includes Ohio.

Pinus monticola (western white pine) has a distribution limitied to western North America.

Pinus strobiformis (southwestern white pine) has a distribution in Texas, New Mexico, Arizona and Colorado.

POISONOUS PLANT DATABASES:

Poisonous Plants of North Carolina

Cornell University Plants Poisonous to Livestock

Toxic Plants of Texas 

University of Pennsylvania Poisonous Plants

Canadian Poisonous Plants Information System

SPECIFIC TO HORSES:

10 Most Poisonous Plants for Horses from EquiSearch.com

Poisonous Plants from Trailblazer Magazine

Toxic Plants: Horses from the ASPCA

Horse Nutrition: Poisonous Plants from Ohio State University

 

 

More Trees Questions

Care in planting native Shumard oaks
April 16, 2008 - I am going to plant 3 shumard red oaks on the west side of my property. The land is basically rocky. What should I put in the holes to help the tree grow?
view the full question and answer

Plants native to Central New Jersey
September 28, 2008 - What trees are native to Central New Jersey? Also, can you give me a website or information on plant life and tree life in Central New Jersey?
view the full question and answer

Protecting a new patio from oak roots
September 01, 2008 - Hello, I have just formed up for a new patio. I have a Live Oak tree about 2' away from the patio. It has a trunk diameter of about 10", I believe 20-25 years old. Problem: I have 2 large roots in ...
view the full question and answer

Driveway through a cluster of Oak trees
June 16, 2015 - Construction of a cement driveway through an 8 tree cluster of escarpment oaks is going to require removal of 2 trees in the center. How can this be done without causing damage to remaining trees? Als...
view the full question and answer

Problems with Texas Ash in Cibolo TX
May 14, 2010 - I have a Texas Ash tree I planted two years ago. The tree was 10 feet high with thick foliage. This spring the leaves started falling off after I spread fertilizer on my yard. The end of the branches ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center