Lophophora williamsii
    var. williamsii compared to var. echinata


    Lophophora williamsii var. williamsii
    in South Texas

    Lophophora williamsii var. echinata
    in West Texas

     

     

    var. williamsii habitat

    var. echinata habitat

    More images:

    var. williamsii

    var. echinata




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    Cactus Conservation Institute