Small aquatic or terrestrial herb; stems simple or branched, thick, succulent, densely brownish-villous. Leaves sessile; blades rounded-ovate, rounded or very obtuse at apex, cordate and clasping at base, usually 8-15 mm long, punctate, glabrous above, glabrous to villous on midrib below; veins several, palmate. Flowers solitary in axils; pedicels usually longer than leaves; calyx 5-parted, the lobes imbricate, the posterior lobe larger, cordate, very obtuse, 4-5 mm long, long-ciliate, the lateral lobes linear-lanceolate; corolla bilabiate, blue or white, 8 mm long, the upper lip 2-lobed, the lower lip 3-lobed; stamens 4, didynamous, included, held against upper lip. Capsules +/- globose, bisulcate; seeds small, numerous. Shattuck s.n. (July 15, 1934). Collected once by Shattuck; possibly still occurring along the shore, but probably not persisting at such low elevations. Seasonal behavior uncertain. Specimens have been collected mostly in the dry season and early rainy season with flowers and fruits.