Masarautar Shuka tana nufin ƙungiyar taxonomic na kwayoyin halitta waɗanda suka haɗa da tsire-tsire, waɗanda suke multicellular, photosynthetic eukaryotes waɗanda galibi suna da bangon tantanin halitta da aka yi da cellulose kuma ana siffanta su da ikon canza hasken rana zuwa makamashin sinadarai ta hanyar photosynthesis. Masarautar Shuka ta ƙunshi nau'ikan halittu daban-daban kamar su mosses, ferns, gymnosperms, da angiosperms (tsiran furanni).