noun. A plant of the genus Lycopodium, which includes many of the club mosses.

noun. The yellowish powdery spores of certain club mosses, especially Lycopodium clavatum, formerly used in fireworks and explosives and as a covering for pills.

noun. club moss

"It is called lycopodium, (1) and each of these particles can produce a vapor, and produce its own flame; but, to see them burning, you would imagine it was all one flame."