Zwanenbloem (Butomus umbellatus) en kleinbloemige salie (Salvia verbenaca) (1640) by anonymous and Crispijn van de Passe I https://www.rawpixel.com/image/13794757/image-paper-flower-frameFree Image from public domain licenseFlowering rush (Butomus umbrellatus) illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759… https://www.rawpixel.com/image/501867/free-illustration-image-redoute-common-rush-flowerFree Image from public domain license