It also infects "Biancaea sappan", a species of flowering tree also known as Sappanwood. Common names in English include sappanwood and Indian redwood. Other dyes used in Byzantine silk workshops were madder, kermes, indigo, weld, and sappanwood. In tropical Asia, a red dye is obtained from sappanwood ("Caesalpinia sappan"). Sappanwood is related to brazilwood ("P. echinata"), and was originally called "brezel wood" in Europe.