Hypericum crux-andrae wani nau'in tsiro ne wanda aka fi sani da Crosswort. Tsire-tsire ne na shekara-shekara tare da furanni rawaya, ɗan asalin Turai da yammacin Asiya. Sunan "crux-andrae" yana nufin "Cross na St. Andrew," yana nufin siffar furanni hudu na furen da suke kama da siffar giciye wanda aka gicciye St. Andrew a kansa. An yi amfani da shukar don magani a cikin magungunan gargajiya, musamman don magance damuwa da damuwa.