Stems to more than 1 m tall, unbranched, rough, evergreen. Sterile and fertile stems similar. Sheath teeth 14-40, whitish towards the tip. Fertile region 1-3 cm long, pointed.

Will tolerate cool conditions.

Eurasia, Pacific N America

Sometimes sold as a medicinal plant.

Tall, unbranched stems; sheath teeth 14-40.

Source: Spencer, R. (1995). Equisetaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 1, Ferns, conifers & their allies. The identification of garden and cultivated plants. University of New South Wales Press.