'Hyssop' in the Bible

The priest will take cedar wood, hyssop, and crimson thread, and he will throw them in the midst of {the burning heifer}.

A clean person will take hyssop and dip [it] into the water and sprinkle [it] on the tent and on all the objects and persons who were there, and on one who touched the bone, or the one slain, or the dead, or the burial site.