Kalmar "Epigaea" suna ne da ke nufin jinsin tsire-tsire masu fure a cikin dangin heath (Ericaceae), wanda ya ƙunshi nau'i ɗaya kawai: Epigaea repens. Wanda aka fi sani da trailing arbutus ko mayflower, ƙaramin ƙaramin shrub ne mai rarrafe wanda ke ɗan asalin gabashin Arewacin Amurka. Sunan "Epigaea" ya samo asali ne daga kalmomin Helenanci "epi" ma'ana "kan" ko "over," da "gaea" ma'ana "duniya" ko "ƙasa," mai yiwuwa yana nufin al'adar shuka ta rarrafe tare da ƙasa. p>