Plants in flower c. 50 mm tall. Flowering stems 1–3 per plant; largest flowering stem 1.3–1.4 mm diam. at base, 0.5–0.7 diam. when dry, purple-black, leaves 8 pairs per stem, lowest pedicels from halfway along flowering stems. Rosette leaves linear to very narrowly elliptic to very narrowly obovate, 30–60 mm long, 2.8–4.1 mm wide, green, V-shaped, recurved at the acute apex; margins finely denticulate; petiole distinct, 14–32 mm long, 0.7–1.1 mm wide at leaf base. Pedicels 6.5–12 mm long, 0.75–0.9 mm diam., 0.4–0.5 mm diam. when dry. Flowers 24–42 per plant, 12–15 mm long. Calyx 6.8–7.0 mm long; lobes 4.3–5.7 mm long, c. 1.5 mm wide at base, green tinted purple-black, apices acute, recurved, margins minutely denticulate, sinus hairs c. 2 per sinus. Corolla 11.7–13.8 mm long, veins purple; tube 3.1–4.3 mm long; lobes 7.7–9.5 mm long, 5.4–6.0 mm wide, lobe apices slightly toothed, hairs below sinus present, curly; nectary 2.0–2.1 mm from corolla base, V-shaped, deep but without a flap. Filaments 6.6–8.1 mm long from corolla base, 0.45– 0.6 mm wide. Anthers 1.75–2.0 mm long. Ovules 15–21 per ovary. Ovary becoming blue at the apex after fertilisation. Capsule 8.0–11.5 mm long. Seeds c. 0.70 × 0.55 mm. FL May.

Ab subspeciebus ceteris caule florifero amplissime ramoso, caudice brevi, foliis tantum subcarinatis, 30–60 mm longis, 2.8–4.1 mm latis, apice foliari leniter recurvo, villis in sinibus calycinis, corolla 12–14 mm longa, nervis purpurascentibus ornata, marginibus subdentatis, nectario non marsupiformi distinguenda.