Plants 100-150(-200) mm high. Corm bell-shaped, 10-14 mm diam.; tunics woody, brown, outer layers breaking irregularly, rarely becoming ± fibrous, basal rim shortly denticulate. Stem several-to many-branched, branches short, clustered near base, stem ± rounded to weakly angled below nodes. Leaves few to several, linear, 2-4 mm wide, slightly corrugately ribbed, lowermost longest, inserted at or just below ground, often as long as inflorescence, rarely slightly longer, ascending to falcate, upper leaves progressively shorter. Inflorescence 1 or more short, 4-to 8-flowered spikes; outer bracts green, succulent, weakly keeled, (12-)15-20(-25) mm long; inner 1/2-2/3 as long, ± membranous with 2 green keels, forked at apex. Flowers zygomorphic, white to cream-coloured, scented or not; perianth tube slender below, curving outward and expanded above, 28-35 mm long, slightly wider in upper ± 4 mm; tepals subequal, narrowly lanceolate, 13-15 x 2-3 mm, acute, spreading. Stamens unilateral, arcuate; filaments 7-8 mm long, exserted 2-3 mm; anthers parallel, 4-5 mm long, ± white; pollen white or yellow. Style arching adaxially to stamens, branching between base and middle of anthers; style branches divided in distal 1/3-2/3, recurved above and usually tangled in anthers. Capsules globose, 8-12 mm long. Seeds globose, 1.7-2.1 mm diam., dark brown, with reticulate sculpturing.
Flowers with a strong sweet scent, zygomorphic, white to cream-coloured, greenish-yellow. or light purplish-brown: perianth tube more or less dimorphic, slender below, curving outwards and expanded above, (20)30–45(70) mm long, the upper pan c. 6 mm long; tepals subequal, 13–30 × 1.3–2.5(3) mm, narrowly lanceolate to linear-filiform, acute to attenuate, spreading equally at right-angles to the tube, vertical.
A herb. It has a bulb or corm. The corm is bell shaped and 10-14 mm across at the base. The plant is erect and keeps growing from year to year. It grows 35 cm high. There are a few leaves. They are 2-4 mm wide and lightly corrugated. The flowers have a scent. They are yellowish-green. There are some subspecies.
Leaves few to several, 1.5–4 mm wide, linear, lightly corrugated, the lowermost inserted on the stem at or just below the ground and longer than the rest,equalling the inflorescence in length, rarely somewhat longer, ascending to falcate or trailing, the upper leaves shorter.
Cormous geophyte, 100-150 mm tall, branching at base, corm tunics brown, margins scalloped. Leaves linear to sword-shaped, ribbed. Flowers in a short to long spike, cream, sweetly fragrant, perianth tube elongate-cylindrical, tepals linear, spreading, bracts short.
Inflorescence comprising 1–several lax to fairly congested spikes of 5–12 flowers; the outer bracts green, 10–20(25) mm long, weakly keeled, the inner bracts smaller, apically forked, becoming membranous.
Corms campanulate, 10–14 mm in diameter at the base: tunics brown, woody, the outer layers breaking irregularly, rarely becoming fibrous, the basal margin crenate to denticulate.
Style dividing between the base and middle of the anthers: style branches forked for c. one-third of their length, usually tangled in the anthers.
Stem simple or branched, more or less terete to weakly angled below the nodes: the branches either crowded below, or laxly arranged.
Easily recognised by the long perianth tube, the narrow tepals and plicate (corrugated) basal leaf.
Stamens unilateral; filaments exserted 2–3 mm; anthers 4–5 mm long.
Capsules 6–8(11) mm long.
Plants (5)10–35 cm high.