Plants 1.3-1.9 m high, forming large tufts of up to 10 plants. Corm globose, 30-50 mm diam., older corms persisting in series under current corm. Stem ± erect, bearing up to 3 cauline leaves, inclined more than 60° above basal leaves, 2-to 4-branched, flushed purplish. Leaves ± 10, lower 7 basal in 2-ranks, reaching to ± base of spike, sheaths forming a false stem below, blades lanceolate, 300-400 x (11-)20-26 mm, soft-textured, with prominent main vein, margins not raised. Spike 2-ranked, main axis up to 22-flowered, lateral spikes up to 16-flowered; bracts membranous below, dry and papery above, outer ± 8 mm long, acute, inner slightly longer to slightly shorter, 2-keeled, forked apically. Flowers orange-scarlet, lower 3 tepals usually reddish orange and with narrow red median streak, tube yellow beneath, unscented; perianth tube trumpet-shaped, curved upward at base and suberect, 40-50 mm long, cylindric and slender in lower 20-25 mm, gradually expanded and curved outward, upper ± 20 mm long, ± straight, horizontal, ± 6.5 x 4 mm wide; tepals lanceolate, dorsal largest, extended horizontally, ± 16 x 8 mm, upper laterals spreading, ± 12 x 5 mm, lower 3 tepals ± 12 x 5 mm, spreading. Filaments 32-34 mm long, exserted ± 10 mm from tube; anthers ± 7 mm long, dark red; pollen yellow. Style horizontal, adaxial to stamens, dividing opposite upper 1/3 of anthers, branches ± 2 mm long, minutely notched. Capsules subglobose to depressed-globose, 3-lobed, rugose to papillate, 8-9 x 10 mm. Seeds globose, 4-5 mm diam., glossy reddish brown, coat loose and wrinkled when dry.
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Cormous geophyte, 1.5-2 m tall, forming large clumps, stems 2-4-branched. Leaves sword-shaped, plane with prominent midrib. Flowers many in a spreading to horizontal spike, scarlet, trumpet-shaped, perianth tube elongate, narrow below, wide above, dorsal tepal largest, horizontal. Mainly Nov.