Peduncle not winged. Leaves up to 30 cm long. Flowers yellowish-green, rarely reddish-purple, odour unpleasant, sickly. Labellumsessile, entire, reflexed about the middle. Columnincurved, 5–6 mm long. Widespread. Rock ledges and crevices. Fl. March–May. Yellow Rock OrchidCestichis reflexa