Equisetum giganteum, a horsetail species native to South America and Central America
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).
Sequoiadendron giganteum | Equisetum | Tricarpelema giganteum | ''R. germanica'' subimago on ''Equisetum hyemale | Eriogonum giganteum | Equisetum myriochaetum | Equisetum hyemale | Equisetum giganteum | Equisetum arvense | Cardiocrinum giganteum | Campanile giganteum | Allium giganteum |