: : : : Could someone please explain to me why cypress (mulch, at least) isn't considered toxic to reptiles while the closely related cedar is? I'm assuming the toxicity comes from quinones, tropolones and podophyllotoxin found in the woods. is it simply a matter of the levels found within the various species? : : : : or have i missed it completely? : : : : are false cedars considered toxic or non-toxic?