Compilation
Diascia rigescens

a perennial herb, erect or ascending, glabrous or glandular-puberulous, rigid, comparatively robust, 1 1/2–3 1/2 ft. high, shrubby below, more or less branched from the base upwards; branches quadrangular, smooth, often fistular, leafy up to the inflorescence or nearly so; internodes mostly short; leaves mostly opposite, often some alternate, ovate or lanceolate, obtuse or subacute at the apex, cordate or truncate at the sessile base, sharply toothed or denticulate, 1/4–1 3/4 in. long, 1/12–1 in. broad, somewhat thickly membranous; racemes terminal, many-flowered, elongated, simple or divided at the base; pedicels 1/4–1 in. long or the upper shorter, slender, bracteate at the base; bracts ovate or lanceolate, acute, sessile, cordate at the base, smaller than the leaves; calyx-segments ovate, obovate, oblong or ovate-lanceolate, obtuse or subacute, usually glandular-puberulous, 1/10– 1/5 in. long, persistent, nerved at least in fruit; corolla rosy, about 1/2 in. broad, sometimes larger or smaller; spurs 1/8– 1/4 in. long; filaments linear, flattened, very narrowly winged, nearly equal in length, two of them bent at the base with the widening wings following the outside of the semicircular curvature, all glabrous or minutely glandular; capsule ovoid-ellipsoid, obtuse, glabrous or minutely glandular, 1/6– 1/4 in. long. null