It's possible you're referring to:
* A specific plant with a common name that sounds like "cow foot leaves": If this is the case, please provide more details about the plant, such as its appearance, where you encountered it, or any other characteristics you remember.
* A misinterpretation of a different plant name: Perhaps you're thinking of a plant with a similar sounding name, like "cow's hoof" or "cow parsley".
Please clarify what you mean by "cow foot leaves" so I can provide you with accurate information.
Once you provide more details, I can tell you about the potential uses of the plant you have in mind.