`fernleaf yarrow` flowers - achillea asplenifolia

abrotanoides achillea anthemideae arboretum asplenifolia asteraceae asterales asteroideae atrata august beautiful bloom blossom botanical botanist botany bouquet bract cluster corolla europe european fern fernleaf flora florist flowerhead flowers flowertop gallen garden horticulture houseplant leaf ligustica millefolium natural nature occulta petals pink plants pratensis purple saint summer swiss switzerland yarrow