It is one of the largest horsetails, growing 2–5 m tall, exceeded only by the closely allied E. myriochaetum (which can achieve stem heights of 8 m, although such plants rely on surrounding herbage for support).
Equisetum | ''R. germanica'' subimago on ''Equisetum hyemale | Equisetum myriochaetum | Equisetum hyemale | Equisetum giganteum | Equisetum arvense |