Plants polycarpic or monocarpic and biennial, height in flower 70–570 mm. Caudex 10–160 mm long. Stolons present or absent. Root 1.2–9 mm diam. at stem base. Flowering stems 1–23 per plant, largest stem 1.4–6.1 mm diam. at base, 0.5–4.1 mm diam. when dry, stem colour green, crimson, or purple-black, lateral flowering stems erect or decumbent, flowering stem leaves 2–7 pairs per stem. Rosette(s) of leaves usually distinct. Rosette leaves 14–98 mm long, 3.5–18 mm wide, green or tinted crimson below; petiole 15–45 mm long, 1.6–7.5 mm wide at leaf base. Pedicels 5–38 mm long (elongating to 55 mm), 0.9–2.0 mm diam., 0.5–1.1 mm diam. when dry. Flowers 1–49 per plant, 11–20 mm long, rarely male-sterile. Calyx 7.5– 11.8 mm long; lobes 5.3–9.6 mm long, 2.1–3.0 mm wide at base, sinus hairs absent, sparse or abundant. Corolla 13.5–20 mm long, white, veins usually uncoloured, rare purple; tube 2.6–5.0 mm long; lobes 10.0–16 mm long, 6.8–10.3 mm wide, hairs below sinus absent or present; nectary 0.4–1.4 mm from corolla base. Filaments 6.0–11.0 mm long from corolla base, 0.7–1.2 mm wide. Anthers 1.8–3.0 mm long, anther wall blue-black, mouth yellow. Stigma colourless. Ovules 40–84 per ovary. Capsule 15– 28 mm long.