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Leaves 5–numerous, erect to arching, fleshy grass-like, broadly winged and sheathing at the base, successively enfolding the bases of inner leaves and peduncle; blade up to 60 cm long and 2–6 mm wide, subterete or narrowly linear to very narrowly strap-shaped at least when dry, tapering to the apex; bases forming a column up to c. 8 cm long and 5–10 mm wide surrounding the peduncle base, outer leaf bases sometimes breaking down into a persistent fibrous sheath; wings clasping, hyaline, up to 8 mm wide on each side of the blade, tapering upwards into the blade.
Succulent, acaulescent, perennial herb; rosettes erect, dividing, with rhizomatous base. Leaves bright, dark green, terete, up to 0.4 m long, erect, in basal rosette. Inflorescence erect, sometimes arcuate, up to 0.8 m high, with lax to very dense raceme; bracts whitish brown or yellow, base auriculate, apex long-acuminate, margins entire; pedicels erect when barren. Flowers yellow. Flowering time Aug.-May.
Succulent, perennial herb; acaulescent, base rhizomatous. Leaves in a basal rosette; blade terete, up to 400 mm long, bright, dark green. Flowers: inflorescences several, erect, sometimes arcuate, raceme lax to very dense; bracts whitish brown or yellow, apex long-acuminate, base auriculate, margins entire; pedicels erect when barren; perianth yellow; Aug.-May. Fruit with capsule not inflated.
Raceme mostly densely many-flowered, ± cylindrical, increasing from 4 to 25 cm long in fruit; bracts persistent, with broad hyaline margins, c. 12 × 3–6 mm, lanceolate, ± auriculate; pedicels ± closely spaced, slender ascending-patent, mostly 8–25 mm long after anthesis, straight, persistent, becoming ± downcurved and more robust in the fruiting inflorescence.
Geophyte, 400-600 mm tall, forming large, compact, rhizomatous tufts. Leaves linear, straight, basal sheaths yellowish and papery. Flowers in a dense, erect raceme, yellow. Capsule globose, 8-10 mm diam., on stout, spreading pedicels. Mainly Aug.-Nov.
Tufted perennial herb, 10–66 cm tall, glabrous, with 1–4 plants from a small woody vertical rhizome; rhizome 6–15 × 5–10 mm, shortly cylindrical to ± shallowly obconic-hemispherical; roots numerous spreading long, fibrous to fleshy fusiform.
Perennial herb, up to 0.65 m high. Leaves in basal tufts, linear from a broad, sheathing, pinkish base with membranous margins, acuminate above to an acute apex. Bracts ± 14 mm long, whitish with a green keel. Flowers canary-yellow.
Geophyte, 40-60 cm, forming large tufts, rootstock a rhizome. Leaves linear. Flowers in a dense raceme on long pedicels, yellow. Capsules globose, spreading.
Tepals yellow or yellow-green, ± persistent, up to 4.5–7 × 2–2.5 mm, oblong-cucullate, with a pronounced green midrib.
Capsule not inflated when mature, stipitate, 4.5–6 mm long including a c. 1 mm long stalk, 3.5–5 mm wide, subglobose.
Peduncle usually 1, ascending-erect, terete, ± fleshy becoming stoutly rigid, 10–50 cm long and 2–5 mm in diameter.
Filaments 2–3 mm long, densely bearded in the upper part with long yellow hairs; anthers 1.5–2 mm long.
Seeds pyramidal, sharply angled, black when mature.
Aerial stems absent.
