Equisetum

Uncommon card · No. 97617

Equisetum (; horsetail) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds. The oldest remains of modern Equisetum species first appear in the Early Jurassic. The genus is near-cosmopolitan. In some areas the species are considered weeds or invasive. The plants are toxic, containing thiaminase, but have been prepared as food or folk medicine.

Read on Wikipedia · Image Ragnhild&Neil Crawford from Sweden, CC BY-SA 2.0