RMDAKE42–pill sedge (Carex pilulifera), blooming, Germany, North Rhine-Westphalia
RM2A2RRTB–Pilliferous Sedge and Yellowish Cypergrass, A and B: Carex pilulifera L. - Pill-bearing sedge or pea sedge, C: Cyperus flavescens L. - Yellowish cypergrass or Zypergrass, Family: 25. Cyperaceae - Ried grasses, Plate 99, after p. 248, (Vol. 1), 1886, Otto Wilhelm Thomé: Prof. Dr. Thomé's Flora von Deutschland, Österreich und der Schweiz in Wort und Bild. Gera-Untermhaus: Verlag von Fr. Eugen Köhler, [1886