Each year we've been working on identifying more of the plants on our property and this year we decided to figure out what one was that we thought was possibly a different type of milkweed. We've figured out that it is one of the Apocynums. Not sure yet if it's Apocynum cannabinum or Apocynum androsaemifolium (Spreading Dogbane). Everything I've found online so far mentions toxicity to livestock but without any real detail or explanation. We noticed our sheep love it, and will go for it first when we move them to a new paddock with a variety of plants in it. Can anyone shed some light on the toxicity issue? We generally trust our animals to eat what they should and avoid the rest since we move them at least once a week and have large paddocks and few animals. I'm wondering if it's possible the sheep have it wrong this time? Thanks for any insight!