silver shamrock flowers or chilean oxalis, pink carpet oxalis, pink buttercups, pink sauerklee in st. gallen, switzerland

flower background floral summer nature leaf spring garden pink white oxalis natural flora perennial botanical plant botany green closeup blooming blossom ornamental shamrock silver beauty beautiful decoration color bloom may gardening fresh botanic decorative colorful chilean adenophylla foliage st swiss stamen red tropical switzerland south species america arboretum argentina