Sago palms are among the many cycads that grow in tropical area of the world; this group of plants first appeared 252 million years ago. They’re gymnosperms and don’t produce true fruits. All parts of these plants are poisonous, the seeds are the most toxic. But the leaves are tasty to dogs and if they chew on them, can be lethal. Please, remove any sago palms from areas where your dogs are confined. Oddly, the seeds and fleshy trunks are high in carbohydrates and many early human beings learned how to leach out the poisonous compounds and use the calorie rich starches as important parts of their diets. Sago palms resemble certain true palms – but they’re entirely different so don’t worry about your pet chewing on palmetto leaves. Look up pictures of sago palms if you aren’t sure what’s g rowing in your yard.