Lycopodium clavatum, a pteridophyte, is a fern (rhizomatous) that is native to California and and is also found elsewhere in North America and beyond.
California Rare Plant Rank:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals,
Consortium of California Herbaria.[web application]. 2020. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: Aug 13, 2020).