Herb to 30 (–40) cm high. Leaves basal and cauline; upper cauline leaves distichous, equitant, linear, 30–70 cm or more long, 1–2 cm wide, readily revolute, especially on drying, slightly asperous towards apex, with prominent midrib. Inflorescence 20–40 cm high, elongate, narrowly paniculate. Flowers dull creamy white to blue or pale violet-blue; pedicels retrorse, 2–7 mm long. Perianth lobes 5–7 mm long, 1.5–2 mm wide. Filaments yellow. Berry spheroidal-ovoid, c. 1 cm diam., royal blue or purplish blue when ripe. Seeds ovoid, 4 mm long.
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