We base the identification of this observation on the cuspidate and acuminate leaf apices, differentiating it from S. helvetica which has acute or attenuate leaf apices (Zhang et al., 2021).

Zhang, M.H., Wei, R., Xiang, Q.P., Ebihara, A. and Zhang, X.C., 2021. Integrative taxonomy of the Selaginella helvetica group based on morphological, molecular and ecological data. Taxon, 70: 1163-1187.