See also BD Hyssop
bunch of hyssop, and dip it in the blood, Ex. 12:22.
Purge me with hyssop, and I shall be clean, Ps. 51:7.
put it upon hyssop, and put it to his mouth, John 19:29.
took the blood … with water, and scarlet wool, and hyssop, and sprinkled, Heb. 9:19.