A plant (Sicyos sp.) related to bur cucumber: flowering and fruiting stem with separate fruit and seed. Coloured etching by… https://www.rawpixel.com/image/13967575/image-flower-plant-treeFree Image from public domain licenseAntique plant Sicyos australis drawn by Sarah Featon (1848–1927). Original from Museum of New Zealand. Digitally… https://www.rawpixel.com/image/8816/free-illustration-image-1800s-public-domain-19th-century-vintage-flowerFree Image from public domain license