See excerpt below from ASPCA website to learn about toxic and non-toxic plants.

“This list contains plants that have been reported as having systemic effects on animals and/or intense effects on the gastrointestinal tract. Please note that the information contained in our plant lists is not meant to be all-inclusive, but rather a compilation of the most frequently encountered plants…”

Visit ASPCA.org to see full list: ASPCA List of Toxic and Non-Toxic Plants