Lycopodium obscurum, tree clubmoss

With their upright stems, horizontal branches, and finely divided foliage, the individual plants much resemble miniature evergreen trees, complete with small spore-bearing cones. In a congenial location, tree club moss will spread by underground stems to form a colony. Prefers a moist but well-drained, humusy soil in partial shade; most often seen in the forest understory (but sometimes grows in full or nearly full sun). Can’t ship to CA, WA, AZ, or OR.