Bulbs rhizomatous, usually branching, continuously scaly, 1.4–5.1 × 3.9–19 cm, 0.2–0.6 times taller than long; scales sometimes unsegmented but always some 2–4-segmented on each bulb, longest 1–3.3 cm; stem roots absent. Stems to 2.8 m, strongly clonal and thus forming dense colonies, to weakly clonal and forming small colonies or clumps. Buds rounded in cross section. Leaves usually ± evenly distributed along stem, rarely concentrated proximally, scattered or in 1–6 whorls or partial whorls, 3–19 leaves per whorl, horizontal and drooping at tips to ascending, 4.9–26.5 × 0.3–5.6 cm, 3–34 times longer than wide; blade usually ± elliptic, wide or narrow, margins usually not undulate, apex acute, often narrowly so; veins and margins ± smooth abaxially. Inflorescences racemose, 1–28(–35)-flowered. Flowers pendent, usually not fragrant; perianth Turk’s-cap-shaped; sepals and petals reflexed 1/4–1/3 along length from base, yellow, yellow-orange, or orange proximally, darker orange to red-orange to red on distal 1/5–3/5 (entirely orange or yellow-orange in subsp. wigginsii), with maroon spots concentrated proximally and always surrounded by yellow or orange if extending into distal reddish zone, conspicuously green abaxially on proximal ± 1/5, not distinctly clawed; sepals not ridged abaxially, 3.5–10.4 × 0.9–2.2 cm; petals 3.4–10.2 × 0.9–2.5 cm; stamens moderately to strongly exserted; filaments moderately to widely spreading, diverging 7°–22° from axis; anthers ± magenta or sometimes orange, orange-pink, or pale yellow, 0.5–2.2 cm; pollen red-brown, red-orange, brown-orange, rust, orange, or yellow; pistil 3.1–7.5 cm; ovary 1–2.2 cm; style green, often pale, rarely sordid; pedicel 6–32 cm. Capsules 2.2–5.7 × 1.2–2.1 cm, 1.5–3.7 times longer than wide. Seeds 123–264.
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A bulb plant. It grows 1.5-2.2 m high and 25-30 cm wide. The flowers are orange-red spotted with purplish-brown. There are 10 flowers per stem.