Stems simple or sparingly branched, slender, ascending to erect from prostrate base, up to ± 10 cm. long; branches bifariously pubescent. Lvs opp., crowded, alt. in floral region, stiff, erect to subpatent, sessile or nearly so. Lamina ± 5-10 × 1-3 mm., linear-oblong, lower obtuse, upper acute or apiculate, glab., subcoriac.; margins remotely denticulate or subentire. Fls solitary or few, ± 4 mm. diam.; calyx-lobes lanceolate, acuminate; petals white. Capsule slender 15-25 mm. long, glab. or slightly puberulous; peduncles very slender, up to 8 cm. long, finely pubescent. Seeds smooth or very minutely papillose.

2n = 36