Diagnostic morphological characters of Semenovia gyirongensis (A1–A6) in comparison to the similar species Semenovia malcolmii (B1–B6) A1–B1 Habitat A2 Oblong minute bracts, apex obtuse-rounded or cuneate B2 linear to narrowly ovate bracts, apex acute A3 narrowly ovate to ovate ultimate leaf lobes B3 linear to narrowly long-ovate ultimate leaf lobes A4 Long-branched underground caudex with distinct nodes B4 Short-branched overground or emergent caudex A5 Cylindric and much-branched root B5 Fusiform and unbranched root A6 Ellipsoidal pollen grains B6 Equatorially constricted pollen grains.