Plants epilithic, evergreen, often becoming reddish, creeping, 5-10 cm. Rhizophores at intervals throughout length of creeping stem and branches, borne on ventral side in axils of branches. Stems irregularly branching, 3.5-5 mm wide including leaves, forming mats. Dorsal leaves ovate, 1-1.5 × 0.5-0.8 mm, margin denticulate, apex acuminate. Ventral leaves ± asymmetrically ovate, 1.5-2.7 × 0.8-1.7 mm, margin denticulate, apex acute. Strobili solitary, terminal, compact, dorsiventrally complanate, non-resupinate, very short; sporophylls similar to trophophylls, nearly symmetrical.
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