Ernie Janes / Forced Rhubarb (Rheum rhaponticum) growing in garden, Norfolk, UK, March

Gary K. Smith / Traditional Rhubarb bed with terracotta forcing pots, Norfolk, UK, April

Pascal Tordeux / Rhubarb (Rumex alpinus / Rheum rhaponticum / rhabarbarum). French Alps, July.

Dr. Axel Gebauer / Chinese rhubarb (Rheum tanguticum), Koko Nor lake, Tso Ngonbo, Qinghai Hu, Qinghai Province, Tibet, Amdo, China