Palhinhaea is characterized by its resilience and adaptability, thriving primarily in moist, acidic soils typical of subalpine and alpine environments. This genus notably comprises small, evergreen clubmosses with creeping, densely leaf-covered stems. Its small, conical sporangia, nestled at leaf bases, are a key feature for species identification. The plant's dense foliage not only grants a lush appearance but also plays a vital role in its survival, aiding in water retention amidst its rugged habitats.