Toxic Plants and Trees - Page 12

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Toxic Plants and Trees

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  • Spanish moss and impaction or laminitis in horses
  • Spanish moss toxicity to horses

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    03-28-2013, 10:25 AM
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    04-05-2013, 05:43 PM
Toxic acorns & Spanish Moss

After the death of a Lesson horse, I was told she ate acorns, they became impacted, & she colicked.(sp??). After much reading, I'm just going to assume for my own sake, all acorns & oak leaves are toxic to be on the safe side...I did find however, that Spanish Moss is fine & can even be part of a diet with grain & hay...huge amount of SM here in the south. Thoughts ??
    04-05-2013, 07:15 PM
Green Broke
I'm just on the forum quick at the moment - my first thought is, if the horse died from colic, it was simply that - an impaction. As far as poisonous leaves/plants for a horse, the cause of death is not an 'impaction' per say such as in colic, but rather the toxins causing the horse's respiration to 'shut down', and rather quickly in many cases. Specifically with the 2 most lethal - Red Maple leaves, and all Cherry leaves. Oak leaves have the pigment 'tanin', and I've yet to hear of tanin being lethal. Red Maple leaves and all Cherry leaves, however, contain Cyanide, (their pigment is called, anthocyanin). My guess is that horse did indeed die of colic from ingesting too many acorns as you suggest - that sounds probable. Hope that helps. So sorry, by the way, to hear of the loss of your lovely horse.
pinkpony555 likes this.
    07-22-2014, 06:48 PM
Black walnut
    08-04-2014, 04:05 PM
Originally Posted by Dumas'_Grrrl    
Lets all put our heads together and create a handy list of plants and trees that are toxic to horses.

A link to a website and/or pictures would be a great resource for all of us to ensure the heath and safety of our horses!

As we are all from different parts of the US and World please feel free to add native plants to your area!!!

Equine Health
First of all, I was trying to squash that little bug....(pretty clever)
I live in a forest. I had to take down about 75 trees of all species and size in order to create a paddock and barn space. I knew that oak trees were toxic, and had many of those removed. The only trees I left inside the paddock are 3 spindly cedars that my horses pretty much ignore. The first time my vet came out she inspected what trees would be harmful that I have nearby, and noted red maples as being severely toxic. Of course red maples are not red...their leaves are green- the red maples with red leaves are not called red maples - (go figure) & are called Japanese maples and are not toxic. The difference she pointed out to me was that the leaves of the red maple are serrated; they have jagged edges between the leaves, whereas sugar maples (which look very much like the red maple leaves) are smooth. Unfortunately we have 3 very large red maples which will shed their leaves in the fall-and that is when they are toxic. So I have a couple of months to figure out what I want to do with them.
red maple leaf(toxic)
sugar maple leaf (nontoxic)
Northernstar likes this.
    08-05-2014, 09:32 PM
There are many more that 2 types of maple.
12 Species of Maple Trees
Northernstar likes this.
    10-27-2014, 10:53 PM
Ok,i have seen this site,it's good.....and thank you......

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