Ma'anar ƙamus na kalmar "saxicolous shuka" tana nufin wani nau'in shuka da ke tsiro a kan ko tsakanin duwatsu ko duwatsu, yawanci a cikin duwatsu ko duwatsu kamar duwatsu, duwatsu, ko bakin teku. Wadannan tsire-tsire sun dace da girma a wuraren da ƙasa ba ta da yawa ko babu, kuma a maimakon haka suna amfani da duwatsu a matsayin maɗaukaki don tsutsawa da cin abinci. Wasu misalan tsire-tsire na saxicolous sun haɗa da mosses, lichens, da wasu nau'in tsire-tsire na furanni kamar rockcress da saxifrages.