yellow flower daisy seeds blossom small on nature background

america arboretum asteraceae auriculata background bloom blossom botanical botanist botany camomile chamomile coreopsis crassifolia daisy europe european flora florist flower flowers gallen garden gladiata heterogyna horticulture july lance lanceleaf lanceolata leaf leaved natural nature north oblongifolia petals plants pubescens rosea saint sand seed seeds small summer swiss switzerland tick tickseed villosa yellow