Perianth bright yellow, each segment striped centrally with darker nerves, to 18 mm long, c. 10 mm in diameter at the mouth, campanulate, with much clear nectar; outer segments free to the base.
Inflorescence 1 or occasionally 2, erect to 1 m high; peduncle simple or rarely 1-branched, with scattered sterile bracts below the raceme.
Raceme 15–30 × c. 5 cm, cylindric, very densely flowered; bracts c. 12 × 7 mm, ovate-acuminate, scarious, pale brown; flowers ± sessile.
Stem suckering and branching above the base to form large groups of plants; stem and branches covered with withered leaf remains.
Stamens and stigma exserted c. 10 mm; stamens with orange-yellow filaments and anthers bright orange, stigma yellow.
Perennial herb, solitary, acaulescent or with a usually decumbent stem to 30 cm long.
Seeds c. 2.5 × 4 mm, blackish-brown with very narrow whitish wings.
Capsule to 15 × 7.5 mm, ovoid, brown.