Preview Sunflower, helianthus annuus. Close up of the centre of the sunflower in spring Image ID: 1190-236 Artist: Patrick Frischknecht Purchase a commercial license Buy framed prints & more from our print store horizontals asterales flowers green flower horizontal sunflowers centre botanical sunflower annuus asteridae summer close up tracheobionta flora annuussonnenblumeclose up magnoliophyta center magnoliopsida close helianthus asteraceae plant plants nature spermatophyta botany wildlife 1030 12005