Rather, they're a type of cycad, a native plant to Japan and China that ... you may notice off-shoot "pups" around your sago palm that can be removed and re-planted for easy propagation.

Perhaps the most deadly plant you may already have in your yard is the Sago palm/Cycas revoluta. It is toxic to humans and pets. Oddly enough, the Sago, despite its structure, is not a real palm tree.