Kalmar “genus” tana nufin nau’in harajin da ake amfani da shi a cikin ilmin halitta zuwa ga rukunonin da ke da alaƙa ta kud da kud da kuma raba wasu halaye. A wannan yanayin, "genus Echinocactus" yana nufin rukuni na cacti waɗanda ke da siffofi masu siffar siffar zobe ko siffar ganga, ribbed da spiny na waje, da furanni masu ban sha'awa.Kalmar "Echinocactus" ita ce. an samo su daga kalmomin Helenanci "echinos," ma'ana "mai laushi," da "kaktos," ma'ana "cactus." Don haka, asalin sunan “Echinocactus” a zahiri yana nufin “cactus na kashin baya.”Gaba ɗaya, kalmar “genus Echinocactus” tana nufin takamaiman rukuni na cacti waɗanda ke da halaye iri ɗaya na zahiri kuma an rarraba su tare cikin taxonomic iri ɗaya. category.