Annual (?) with stiff rather slender root. Stems us. several from stock, 7·5-15 cm. tall, ascending to erect, ± branched (sts much-branched) forming small clumps. Basal lvs thin to rather coriac., few, ovate-spathulate, apparently soon falling; lamina ± 10 × 3-4 mm., on flat petioles up to 10 mm. long. Cauline lvs us. several pairs, sessile or sub-sessile, narrow- to rather broad-ovate, acute, ± 10-15 × 4-6 mm., sts lanceolate. Fls solitary, terminal. Calyx ± 15-20 mm. long, = corolla or nearly so; cut almost to base into narrow-subulate acute to sub-acuminate lobes. Corolla white, cut 4/5 way into narrow ovate-lanceolate, acute to acuminate, subapiculate, conspicuously veined lobes.

Plants monocarpic, biennial, height in flower 60–200 mm. Caudex unbranched, 10–25 mm long. Root c. 0.9 mm diam. at stem base. Flowering stems terminal only or terminal and lateral, 1–19 per plant, largest flowering stem 1.0–1.6 mm diam. at base, 0.8–1.6 mm diam. when dry, stem colour bronze, lateral flowering stems erect, flowering stem leaves 2–4 pairs per stem, lowest pedicels from halfway up flowering stem or near apex of flowering stem. Rosette of leaves present and distinct from flowering stem leaves, leaves elliptic, leaf apex acute, 13–22 mm long, 3.6–7.0 mm wide, green, channelled, not recurved, petiole 7.3–14.5 mm long. Petiole 1.0–1.2 mm wide at leaf base. Flowering stem leaves narrowly elliptic. Pedicels 1 per leaf axil, 4.5– 60 mm long, 0.8–1.1 mm diam., 0.8–1.2 mm diam. when dry. Flowers 1–28 per plant, 12.5–14.9 mm long. Calyx 9.5–14.7 mm long, bronze-green, hairs at calyx–corolla fusion line present; lobes 8.5–11.8 mm long, 1.7–2.0 mm wide at base, plane, apices acute, margins smooth, sinus hairs sparse. Corolla 11.7–15.3 mm long, white; tube 3.0–3.5 mm long; lobes 8.8–12 mm long, 5.0–6.5 mm wide, apices acute and slightly serrated, hairs below sinus absent or present; nectary 1.7–2.0 mm from corolla base. Filaments 6.5–8.6 mm long from corolla base, 0.5–1.1 mm wide. Anthers 1.1–1.9 mm long, anther wall blue-black, mouth yellow, introrse at anthesis; pollen yellow. Stigma colourless. Ovules 36–49 per ovary. Capsule 15.3–27 mm long. FL Jan–Mar.