Prostrate stems creeping and rooting, to 10 cm, branched, ca 1 mm thick, dorsiventral, with 6-ranked lvs, the 2 lower (seemingly lateral) ranks spreading, lance-ovate, 3-7 נ1.3-2.1 mm, acuminate, entire, the 4 upper ranks erect, much smaller, lanceolate, 2.5-5 נ0.7-1.2 mm, attenuate; erect stems 1-3 dm, terete, ca 1 mm thick, the lvs scattered, equal, bract- like, linear-subulate, 3-5 mm, ascending or appressed; cones solitary, 2-12 cm, 5-7 mm thick; sporophylls yellowish-green, broad-based, with subulate spreading tip; sporangia subglobose, 1-1.3 mm wide; spores with smooth commissural faces, otherwise as in no. 6 [Lycopodium inundatum L.]; 2n=156. Bogs and sandy pine-barrens in acid soil; Mass. and L.I. to Fla. and Tex., mainly on the coastal plain, and interruptedly pantropical.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.