The stems superficially resemble small seedlings of coniferous trees, though it is not related to these. The horizontal stems produce roots at frequent intervals along their length, allowing the stem to grow indefinitely along the ground. The spore cones are yellow-green, 2–3 cm long, and 5 mm broad. The branches bearing strobili or spore cones turn erect, reaching 5–10 cm above ground, and their leaves are modified as sporophylls that enclose the spore capsules or sporangia. The leaves are 3–4 mm long and around 1 mm broad, tapered to a fine hair like white point. Lycopodium clavatum is a spore-bearing vascular plant, growing mainly prostrate along the ground with stems up to 40-inch-long the stems are much branched, and densely clothed with small, spirally arranged microphyll leaves.
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