Sterile stems proximally arching, then recurved to the ground and distally prostrate and rooting, mostly 2–3+ mm thick (excl. lvs), the lvs many-ranked, twisted into a ± erect position so that the upper side of the stem looks densely spreading-leafy and the lower side nearly bare, all linear-subulate, 6–7 × 0.6–1 mm, strongly ciliate-denticulate; fertile stems erect, 1–2.5 dm, the densely crowded lvs to 11 mm; cones sessile, 2–6 cm, 1–2 cm thick; sporophylls green, linear- subulate, 6–11 mm, widely spreading, not much enlarged at the base, strongly ciliate to above the middle; sporangia globose, 0.8–1 mm thick; spores as in no. 6 [Lycopodium inundatum L.]; 2n=156. Bogs and moist banks in acid soil; Mass. to Fla. and Tex., chiefly on the coastal plain, but disjunct in the Cumberland mts.
