Comparison of morphological characters between plants from Xunwu (A–I) and Gelidocalamus stellatus (J–R). A–D, J–M culm and node E–G, N–P culm leaf sheath H, Q branch sheath I, R foliage leaf. Scale bars: 3 mm (A–C, E, J–L, N), 1 mm (D, F–H, M, O–Q), 2 cm (I, R).