Carex chordalis Liebm. (additional source)
Carex crassiflora Kük. (original description)
Carex drymophila var. udensis (Meinsh.) Kük. accepted as Carex drymophila Turcz. ex Steud. (new combination reference)
Carex fecunda Steud. (additional source)
Carex jamesonii var. chordalis (Liebm.) Kük. accepted as Carex chordalis Liebm. (original description)
Carex lehmanniana var. simplex Kük. accepted as Carex via-aquae Jim.Mejías, Lois, Acedo & Reznicek (original description)
Carex mildbraediana Kük. (original description)
Carex obscuriceps Kük. (original description)
Carex okuboi Franch. (original description)
Carex pseudoaperta Boeckeler ex Kük. (original description)
Carex sect. Rhomboidales Kük. (original description)
Carex tuberculata var. ehrenbergiana (Boeckeler) Kük. accepted as Carex tuberculata Liebm. (original description)
Schoenoxiphium ecklonii var. unisexuale Kük. accepted as Carex capensis Thunb. (original description)
Schoenoxiphium kunthianum Kük. accepted as Carex dregeana Kunth (original description)
Schoenoxiphium lanceum (Thunb.) Kük. accepted as Carex lancea (Thunb.) Baill. (new combination reference)
Schoenoxiphium rufum var. dregeanum (Kunth) Kük. accepted as Carex ludwigii (Hochst.) Luceño & Martín-Bravo (redescription)
Schoenoxiphium rufum var. pondoense Kük. accepted as Carex ludwigii (Hochst.) Luceño & Martín-Bravo (original description)
Schoenoxiphium sparteum var. lehmannii (Nees) Kük. accepted as Carex esenbeckiana Boeckeler (redescription)
Schoenoxiphium sparteum var. schimperianum (Boeckeler) Kuk. (new combination reference)

Holotype B B100166187, geounit Rwanda, identified as Carex mildbraediana Kük.

 Diagnosis

 for Carex obscuriceps Kük.

Culmus 20–45 cm altus rigidus obsolete triqueter laevis. Folia culmo breviora longiorave 3–5 mm lata basi ... [details]