An erect annual to 50 cm. Stems simple or branched. Stem and branches appressed hairy with hairs less than 1 mm long, intermixed with subappressed longer hairs arising from a tuberculate base. Basal leaves linear-oblong, 20-30 x 2-3.5 mm, covered on both surfaces with suberect hairs up to 2 mm long; cauline leaves smaller. Inflorescence elongating in fruit. Pedicels in fruit stout, c. 2-2.5 mm long, hairy. Calyx lobes c. 2 mm long. Corolla blue; tube 2-3 mm long. Nutlets, c. 2 mm long, margin of wing with appendages uniseriate and up to 0.7 mm long, not or barely dilated towards base bearing anchor-like spinules. Dorsal and ventral surface tuberculate. Style slender, exceeding the nutlets.