The Collaborative International Dictionary
Ironwort
Ironwort \I"ron*wort`\, n. (Bot.) An herb of the Mint family ( Sideritis), supposed to heal sword cuts; also, a species of Galeopsis.
Wiktionary
ironwort
n. 1 A herb of several species in the (taxlink Sideritis genus noshow=1) genus, formerly believed to heal sword cuts. 2 (taxlink Galeopsis ladanum species noshow=1), (vern: red hemp-nettle).