Sect. Rupestres Tuckerm. (Cyperaceae)
组48. 石薹草组 Sect. 48. Rupestres Tuckerm.
名称文献：Sect. 48. Rupestres Tuckerm., Enum. Meth. Caric. Quarundam. 7. 1843, (unranked) ex L. H. Bailey in Proc. Am. Aead. 22: 130, 1886; Mackenzie, North Amer. Fl. 18 (4): 219, 1935; Akiyama, Caric. Far East. Reg. Asia 37, 1955.——Sect. Digitatae Fries ser. Rupestres (Tuckerm. ex Bailey) T. Koyama in Journ. Fac. Sci. Univ. Tokyo III, 8 (4): 171, 1962. ——Sect. Petraeae (O. F. Lang) Kukenth in Engl., Pflanzenr. Heft 38 (IV, 20): 85, 1909; Chater inTutin et al., Fl. Europ. 5: 322, 1980. ——Petraeae O. F. Lang in Linnaea 24: 501, 1851.
形态特征：小穗1个，顶生，雄雌顺序，花密集或稀疏，雌花鳞片宿存或迟落；果囊宽卵形至宽椭圆形，脉不明显，顶端急缩成一短喙；小坚果基部通常具退化小穗轴；柱头3个。
形态特征：本组除下列二种外，Kukenthal (in Engl., Pflanzenr. Heft 38, IV. 20: 86, 1909) 曾报道我国沈阳产 Carex rupestris Bell ex All., 我们和东北草本植物志作者均未见到此种标本，附志于此，待日后订正。
形态特征：组模式种：Carex rupestris Bell. ex All.