Hatiora gaertneri shine sunan kimiyya na nau'in nau'in cactus na epiphytic na Brazil. An fi saninsa da cactus na Easter ko Whitsun cactus, kuma ya shahara a matsayin tsire-tsire na cikin gida don furanni masu ban sha'awa, ruwan hoda ko fari waɗanda ke yin fure a cikin bazara. Kalmar "Hatiora" tana girmama wani masanin lambu dan kasar Belgium mai suna Jean Jules Linden, wanda kuma aka fi sani da "Linden na Brussels", yayin da "gaertneri" aka ba shi sunan masanin ilimin halittu na Jamus, Joseph Gaertner.