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Perennial or sometimes annual, de­cumbent to erect, often much branched and bushy, succulent herb 0,12—0,5 m tall; stems sparingly to densely villous; roots sometimes tuberous. Leaves petiolate; blade succulent, often viscid, tending to fold along the midrib, obovate to elliptic-ovate, 20—50 x 15—35 mm, pubescent, under-surface with orange gland-dots, apex ob­tuse, base cuneate to attenuate, margin obscurely few-toothed; petiole 5—15 mm long. Inflorescence a terminal spike-like raceme 70—150 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 dense above, laxer and 5 — 15 mm apart below; pedicels erect. Calyx 6 mm long in fruit, similar to P. tetensis (no. 11). Corolla mauve-purple, 12-20 mm long; tube slightly geniculate about the middle and expanding towards the throat; upper lip bluish white, 2 mm long; lower lip boat-shaped, 8—11 mm long. Stamens 8—11 mm long, united at the base for 2-3 mm. Fig 27: 1.