`yellow flax` flowers - linum campanulatum

alpine arboretum bell bloom blossom botanical botany campanula campanulatum flax flora flower fresh gallen garden glandulosum glocken golden grandiflorum green hardy hare harebell leaf lein lily linaceae linum marginale mediterranean medium natural nature ornamental perenne petal plant saint swiss switzerland usitatissimum vibrant wildflower xantholinum yellow