Perennial herb us. with adventitious roots on decumbent lateral branches. Rosette-lvs 1·5-3·5 × 0·5-1·5 cm., lamina orbicular to broadly ovate, mucronate, us. shorter than the slender well-defined petiole; hairs short, straight. ± appressed, not crowded, us. similar on both surfaces. Lateral branches 5-30 cm. long, themselves branched and sts bearing subsidiary rosettes distal to the fls; internodes = or > lvs. Stem-lvs orbicular to broad-elliptic, 5-20 mm. long, shortly petiolate; hairs like those of rosette-lvs. Fls borne singly, each associated with a If, sts 6-10 suceeding one another over a length of 10 cm. or more; pedicels 2-6 mm. long in fr. Calyx 1-3 mm. long, lobed almost to base, lobes narrow, acute, spreading in fr.; hairs spreading, scattered over lobes and base, not uniform in size, the largest ± hooked. Corolla white, 1-3 mm. diam., tube cylindric, lobes spreading but not flat; filaments fixed about level of small scales, carrying anthers halfway up lobes; anthers much <1mm. long; style little > mature calyx in fr.; stigma clavate. Nutlets ± 1 mm. long, brown.

Hairs short and ± appressed, on stem mostly lying rather close. Pedicel c. = calyx; corolla rarely as much as 2 mm. diam. Plant creeping. sts rooting close up to ends of branches.

All parts rather hispid, stem-hairs particularly spreading almost at right angles. Pedicel much > calyx in fr.; corolla c. 3 mm. diam. Plant straggling, roots on branches rather few, occ. almost lacking.

2n = 46

n = 23 bivalents

Branches decumbent, sometimes with subsidiary rosettes, with some roots from nodes. Lf lamina orbicular to broadly ovate; hairs short, straight, ± appressed, not crowded, usually similar on both surfaces. Stem lvs = or < internodes. Fls solitary, each associated with a lf. Calyx lobed almost to base; hairs spreading, not uniform, the largest ± hooked. Corolla white, 1-3 mm diam.; tube cylindric; anthers wholly exserted.