Leaf blade dull green, to 4 mm wide. Spathe 1.9–3.2 cm. Flowers erect; perianth dark lemon yellow, funnelform, 2.5–5 cm; perianth tube green, (1–) 1.2–2 (–2.4) cm, increasing in diam., less than 1/2 perianth length, ca. 2 times filament length, ca. 1/2–3/4 spathe length; tepals sometimes reflexed; stamens diverging to semifasciculate, appearing equal; filaments filiform, (0.5–)0.6–0.8 (–1.1) cm; anthers ca. 7 mm; style longer than perianth tube; stigma capitate, usually among anthers; pedicel (0.1–)0.2–1.6(–1.8) cm, shorter than spathe. 2n = 46, 48.
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