white `bellflower` - campanula ochroleuca

arboretum arvatica asterales bell bellflower blassgelbe bloom blossom botanical botanist botany campanula campanulaceae campanuloideae caucasian caucasus creamy divaricata drabifolia elegans europe european exigua flora florist flower flowers gallen garden glockenblume hare harebell horticulture juni leaf natural nature ochroleuca orbelica parryi petals plants saint summer swiss switzerland tridentata white zoysii