Slender spreading to erect perennial with slender to stout root, stock simple to multicipital. Stems several to ∞, slender, sparingly or much branched, 8-20-(30) cm. long, rarely up to 45 cm., finely striate, margined. Basal and lower lvs in rather crowded pairs, almost connate at base, rather flaccid, 1·5-2 cm × 1-2.5 mm.; linear or slightly expanded at tips, acute or subacute, margins ± recurved, midrib rather obscure; petiole short, slender, expanding to base. Cauline lvs in several to many similar but smaller connate pairs. Fls few to several, us. solitary, on slender pedicels ± 10 mm. long. Calyx cut 4/5 way into linear-subulate unequal lobes ± 10 mm. long, sinus rounded. Corolla white, c. 15 mm. long, deeply cut into oblong-lanceolate to narrow-obovate, subacute, apiculate, distinctly veined lobes.