Also Known As
Field horsetail, Common horsetail, Bottlebrush, Foxtail, Mare’s tail, Horse pipes, Snake grass, Scouringrush (figures 1, 2, and 3 below), Scourweed, Pinetop.
Horsetail, (Equisetum arvense L.), belongs to a prehistoric plant family that was dominant in the world 230 million years ago and significantly contributed to the formation of coal deposits. The Equisetum family contains over 30 plant species and is native nearly worldwide, excepting Australia, New Zealand, and Antarctica. The Pacific Northwest is home to about 20 Equisetum species.