Leaves 10–40 x 3–10 (12.5) mm., the lower obovate-oblong or oblong-spathulate, obtuse at the apex, attenuate at the base; the upper oblong-lanceolate, dilated, scarious, 5-nerved and connate at the base forming an involucre surrounding the inflorescence, secondary nerves with a coarse reticulation.
Corolla tube 1.5–1.8(2) mm. long, papillose, with distinct scarcely elongated epidermis cells; lobes 1–1.5 x 1.1–1.4 mm., broadly ovate, subacute at the apex, externally coarsely papillose, internally smooth.
Calyx tube 1–1.5 mm. long, campanulate; lobes 2.3 x 6.8–1.25 mm., obovate-oblong or oblong-subspathulate, obtuse at the apex, with 3-nerves from the base and anastomosing secondary nerves near the apex.
Flower blue, to whitish, in axillary and terminal many-flowered fascicles; pedicels 0.5–1 mm. long, 4-ridged.
Ovary 1.7–2 x 1–1.1 mm., obovoid; style 1.3–1.4 mm. long; stigma of 2 filiform recurved lobes.
Filaments 0.8–1 mm. long, filiform; anthers c. 0.5 mm. long, subglobose.
Seeds c. 0.5 mm. in diam., subglobose, minutely scrobiculate.
Stem more or less branched from the base, 4-ridged.
Capsule 2.3–2.5 x 1.6–1.8 mm., obovoid.
Erect annual herb, 6–15 cm. tall.