Zamioculcas zamiifolia (Araceae) is native to east Africa and is generally grown as indoor ornamental plant. It has air purifying qualities for indoor environment. The plant has the ability to remove the volatile compounds from indoor environment. The scientific researches have proved that plant is not poisonous. It contains calcium oxalate crystals like other Araceae members which could irritate sensitive parts of the body like skin, mucosa etc.
Thank you very much for your reply and answer. Much appreciated. Indeed it was reported as a good air purifier but people claim that the plant is toxic and can cause cancer. Thus it is good to find out whether the claims have some truth in them
It is a very useful indoor plant. It can only cause allergy like symptoms due to presence of calcium oxalate crystals. Its cancer inducing claim is absolutely baseless.