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Perennating organs subterranean, tuberous, 10–13 mm tall, 8–10 mm in diameter, ovoid, forming chains; roots slender, up to 1 mm in diameter.
Leaves 2–6, 10–30 cm × 1–3 mm, narrowly linear, acuminate, grass-like, absent or just starting to develop at flowering time.
Inflorescence laxly to fairly densely several-to many-flowered; scape almost covered by 4–5 papery sheaths.
Sepals 4.2–9.5 × 1.5–3 mm, oblong-lanceolate, acute or obtuse.
Flowers bright yellow, column and spur often tinged with red.
Pedicel and ovary 4–8 mm long, the ovary swelling quickly.
Petals 4.2–8 × 1.6–3 mm, oblanceolate, acute or subacute.
Bracts 6–10 mm long, scarious, linear, acuminate.
Small yellow flowers in a rather short spike.
Slender terrestrial herb 25–52 cm tall.
A slender herb up to 15 in. high
Capsule pendent, 20 mm long.
Column 2–2.7 mm long.
Very narrow leaves
