Perennial from stout cylindric stock. Basal lvs crowded, 15-30 cm. or more long, broad ovate-cordate to reniform, thick, fleshy, deeply grooved, on long stout petioles; upper surface glab. and shining, under-surface with evenly scattered minute retrorse hairs. Fl.-branches exceeding lvs, their lvs about oblong, sessile. Cymes dense, 10-15 cm. diam.; pedicels c. 10 mm. long. Calyx-lobes broad with appressed hairs; corolla c. 12-15 mm. diam., dark to pale blue, lobes rounded. Nutlets flattened, with unevenly toothed wing, c. 15 mm. diam.
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