that's a crown of thorns flower.

crown thorns flower euphorbia milii stems vibrant red pink structures christ plant christs thorn spurge euphorbiaceae commemorates baron milius garden nature spring leaf white green tropical evergreen euphorbiaciae fresh freshness grow growing spotted growth young natural petal flora native pure bright plantlet shrub small summer floral beauty color colorful beautiful decoration bouquet botanical blossom macro bloom blooming flowers close milli peaceful bush that 39aph39 scientific name it spiny petallike produce wildflower tree food branch fruit herb lilac