Autotrophic annual, up to 30 cm. Stem simple or, sometimes, branched, bearing a single flower or a cluster of few flowers. Rosulate leaves linear or lanceolate, acute or acuminate, 3-nerved, about 1 cm by 1½-3 mm. Stem leaves appressed, imbricate in the basal part, linear-lanceolate, subulate, rather long, up to 2 cm. Bracts lanceolate, acute, 4 by 1 mm. Flowers prominently 3-winged, blue, purplish or white, often with yellow lobes, about 11½ mm. Outer perianth lobes ovate, apiculate, with double margin, about 1½ mm. Inner ones lanceolate, apiculate, with double margin, about ½ mm. Tube cylindrical-trigonous, about 5 mm. Connective provided with 2 apical, divergent, obtuse to truncate crests and a basal hanging, rather long, obtuse spur. Style thick-filiform, bearing 3 sessile, funnel-shaped stigmas with swollen margin. Style with stigmas about 4 mm. Ovary ellipsoid to obovoid, truncate, attenuate towards the base, about 5 mm. Flower wings half elliptical to half obovate, about 10 by 2½ mm. Capsule obovoid, truncate, transversely dehiscing.
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Plants with chlorophyll, semi-mycotrophic, flowering when 10-40 cm tall. Stems green, slender. Basal rosette leaves few, linear-lanceolate, 0.5-2 cm × ca. 3 mm. Cauline leaves linear, 0.5-3 × 0.2-0.3 cm. Inflorescences (1 or)2-6(-8)-flowered; bracts lanceolate, 3-6 mm. Flowers pedicellate to subsessile, bluish purple with yellow tepals, 1-1.5 cm. Perianth tube 4.5-13 mm; wings conspicuous, 1.5-3 mm wide; outer tepals ovate-triangular, 1-2 mm, margin double and prominent; inner tepals triangular, 0.5-1 mm, margin double. Stamens sessile; connectives with 2 apical crests and a pendent basal spur. Ovary ellipsoid to obovoid, 3-7 mm. Capsule obovoid. Seeds ellipsoid. Fl. Jun-Oct, fr. Oct-Feb. 2n = ca. 16.
Grass-fields, among alang-alang (Impe-rata), in mountain meadows, parks and plantations, ascending to ca 1700 m alt.
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