Lycopodium clavatum, commonly known as clubmoss or running cedar, is a species of fern-like plant belonging to the family Lycopodiaceae. It is native to cool temperate regions of the Northern Hemisphere, including North America, Europe, and Asia. The plant is characterized by its creeping, branching stems that can extend several meters in length, with upright, branched stems bearing yellow-green, lance-shaped leaves. Lycopodium clavatum is often found in moist, shady environments such as forests and bogs. In Hebrew, it is known as ליקופודיום קלאבטום (Likopodium Klavatum). The spores of this plant have been historically used in various applications, including as a flash powder in early photography and as a thickening agent in pharmaceuticals. Additionally, the plant has been used in traditional medicine for its purported anti-inflammatory and antiseptic properties. In Japanese, it is referred to as ヤブコウジ (Yabukouji), and in German, it is called Gewöhnliches Stäbchenmoos.