Diascia racemulosa Benth.

Diffuse annual herb, main stem up to 750 mm long, 3-4 mm diam., branching low down into lax spreading panicles, glabrous. Leaves on the main branches mostly 35-55 x 28-40 mm, smaller upwards, ovate, apex acute, base subcordate, margins sharply serrate, glabrous; petiole 4-11 mm long. Flowers many in somewhat crowded or more lax and then flagelliform racemes compounded into panicles; lowermost bracts leaf-like, rapidly smaller upwards and then mostly 4-8 x 1-2 mm, lanceolate, shortly acuminate, glabrous; pedicels mostly 15-35 mm long, filiform, wide-spreading, sometimes recurved in fruit, glabrous to sparsely glandular-pubescent. Calyx segments lanceolate, acute to shortly acuminate, two anticous ones 2.5-3.5 x 0.75-1 mm, three posticous ones slightly smaller, glabrous. Corolla tube c. 4 mm long, not invaginated, two lateral spurs c. 5 mm long, slightly curved, directed downwards, with a patch of dark sessile glands within near the tips; limb c. 14-15 x 12-13 mm, anticous lobe c. 7 x 7 mm, subrotund, two lateral lobes, 3.5-4 x 3-4 mm, oblong-elliptic, two posticous lobes 3-3.5 x 2.5-3 mm, oblong-elliptic, pale rose-pink, purplish in the throat, sparsely glandular-pubescent outside, glabrous inside except for a patch of dark sessile glands on the palate, which is elevated into a median keel separating the openings to the two spurs, “window” deeply concave, hemispherical. Stamens erect, filaments of the anticous pair c. 2.5 mm long, straight except for the usual twist at the base, posticous pair sharply bent above the middle and thickened there, all glandular-pubescent; anthers 0.75 mm long, cohering strongly, partly hidden in the window. Ovary c. 1.25-1.5 x 1 mm, ovules 3-6 in each loculus; style 1.75-2 mm long, stigma capitate, lying between the anthers. Capsules c. 5 x 3 mm, ovoid; seeds 1.5 mm long, curved, ridged.