Rosette-lvs c. 1·5-3·5 cm. × 4-7 mm., elliptic- to ovate-spathulate, petiole c. = lamina-length, tip obtuse, sts apiculate; hairs flexuous, longer on margins, few or absent on undersurface. Lateral branches few, decumbent, rarely > 8 cm. long, internodes = or < lvs. Stem-lvs smaller and narrower than rosette-lvs, tip subacute; hairs flexuous, sparser on undersurface. Cymes us. simple, few-fld, 1-2 cm. long, bracts us. associated with lowermost 2-3 fls; internodes us. < calyx in fr. Calyx 4-6 mm. long, lobes c. 1/2 length or less, subacute; hairs of several lengths, flexuous, long on margins. Corolla white, us. c. 7-8 mm. diam., tube distinctly > calyx, cylindric, lobes c. 3 × 2 mm., oblong; filaments fixed between or just below scales, = or > anthers which are held wholly above scales; style c. 2 × calyx in fr., stigma capitate. Nutlets c. 1·5 × 1.1 mm., pointed.

Plant compact, hairs on lvs and calyx ∞ and ± overlapping. Calyx lobed to about one-third, lobes rather broad-triangular.

Plant laxly branched, hairs on lvs and calyx rather few and widely spaced. Calyx lobed at least to halfway, lobes narrow-oblong.

Rosette lvs elliptic- to ovate-spathulate; hairs flexuous, few or 0 abaxially. Lateral branches few, decumbent; internodes = or < lvs. Cymes simple, few-flowered, the lowest 2-3 fls usually associated with bracts. Calyx hairs flexuous, long on margins. Corolla white, c. 7-8 mm diam.; tube cylindric, distinctly > calyx; filaments = or > wholly exserted anthers.