I would not plop it right in my tank personally, you can get all sorts of nasties as passengers. There are several dip treatments people use, Alum, Bleach, Potassium Permanganate etc. Personally only have experience with PP, worked a treat and when dosed correctly seems to be well tolerated by the plant. In your case if the plant should die from the dip you could always go out and grab another bit 😉 Being a native plant I assume it wont like living in a very hot tank, but maybe im wrong. If worried about toxicity put it in a container with some daphnia and see if they thrive