Plants terrestrial. Stem erect or ascending, 8-13 cm, 1.2-1.5 mm in diam. at middle, together with leaves 7-10 mm wide, 3-6 times dichotomously branched, upper portion often with numerous bulbils. Leaves dense, strongly reflexed or slightly angled downward, not lustrous, linear, nearly as wide at base as middle, conspicuously falcate, 5-9 × 0.7-0.8 mm, subleathery, both surfaces glabrous, midrib indistinct abaxially, slightly distinct adaxially, base truncate, decurrent, sessile, margin straight and not crispate, entire, apex acuminate. Sporophylls homomorphic with trophophylls; sporangia obviously visible from outside of sporophylls, yellowish or grayish green, reniform.

Huperzia quasipolytrichoides can be divided into two varieties.

Alpine forests, moss-covered shrubs in forests. Anhui, Jiangxi, Taiwan [Japan].