Prehistoric Horsetail and Modern Healing Horsetail (Equisetum arvense) is a direct descendant of the giant fern-like plants that covered the Earth some 200 million years ago. Today a much smaller version of this prehistoric perennial, resembling asparagus, can be found growing in moist or sandy soil along shady steams and creeks in early spring.
Healthy Horsetail Think that horsetail is just for good skin, strong nails and healthy hair? Think agai.