Caption:
Little evening primrose, small sundrops, or small evening primrose, Oenothera perennis. Dwarf oenothera, Oenothera pumila. Native to North America and Canada, introduced by Philip Miller to Chelsea Physic Garden in 1757. Handcoloured copperplate engraving after a botanical illustration from William Curtis's Botanical Magazine, Stephen Couchman, London, 1796.