Plectranthus malvinus Van Jaarsv. & T.J.Edwards

Decumbent, strigose, mat-forming herb; roots shallow, fibrous. Stems 4-angled, purple-green, ± 3 mm in diameter, strigose (white multicellular hairs), punctate; internodes 10-40 mm apart. Leaves fleshy, firm, ovate to obovate, 40-90 x 30-50 mm, strigose, serrate with 8-10 pairs of teeth; abaxial surface strigose, veins purple, densely strigose, hairs white, gland dots colourless, sunken; base cuneate, apex acute; petiole 5-10 mm long, purple, densely villose on adaxial surface, decurrent. Inflorescence a raceme or lax panicle, 180-210 mm long; cymes 3-flowered, 10-15 mm apart; bracts ovate-lanceolate, 7 x 2 mm long; pedicels ± 10 mm long. Calyx 4 mm long (enlarging to 10 mm), upper lobe ovate, 2 mm long (5 mm in fruit), lower lobes 4, linear, 1.5 mm long (4 mm after flowering). Corolla ± 12 mm long, pink (violet group 84c), tube laterally compressed, 6 mm long, saccate at base and 3 mm deep, narrowing to 2 mm at throat, upper lip 7 mm long, 2-lobed, lateral lobes 3 mm long, lower lip boat-shaped, 5 mm long. Nutlets brown to black, ovoid, 1.5 x 1.0 mm.