Jafan spurge (Pachysandra terminalis) wani nau'in tsiro ne a cikin dangin boxwood, ɗan asalin Japan da China, wanda aka fi girma a matsayin ƙasa a cikin inuwa. Yana da kyalkyali, koren duhu, ganyaye mara koraye da ƙanana, farare ko furanni masu kore waɗanda suke fure a farkon bazara. Hakanan ana san shukar da wasu sunaye na gama gari, gami da pachysandra na Japan, akwatin kafet, da spur dutse.