Perennial decumbent to trailing succu­lent herb, branching freely at the base, up to 0,3 m tall. Leaves shortly petiolate; blade succulent, drying thick-textured, obovate to broadly obovate, 20-30 x 15-25 mm, sparingly to fairly densely pubescent, under-surface with orange gland-dots, strongly veined, apex rounded, base cune-ate, margin finely crenate-dentate in the upper half; petiole 2—10 mm long. Inflore­scence a terminal dense spike-like raceme 40—60 (—90) mm long; bracts forming a 4-angled apical coma, greenish white tipped with purple, early deciduous; flowers in 3-flowered sessile cymes, forming 6-flowered verticils; verticils crowded except for 1—3 shortly spaced below; pedicels erect. Calyx 6 mm long in fruit, similar to P. tetensis (no. 11). Corolla bluish mauve with purple mottling on the upper lip, 20 — 25 mm long; tube slightly geniculate and expanding towards the throat; upper lip 6 mm long, lower lip boat-shaped, 12—15 mm long, sometimes bifurcate at the apex. Stamens 12—14 mm long, united at the base for 3—4 mm.