Nemesia fruticans, the common wild nemesia or in Afrikaans the wilde leeubekkie (wild little lion's mouth), is a shrublet with many erect, slender stems growing to heights of about 40 cm from a woody taproot. There is a fine line, or more appropriately a grey area between herbs and shrubs; this plant is on it or in it. Artificial human categories to facilitate learning, useful as they may be, are not known to plants or respected by the diversification processes in the continuous forming of species.
The leaves are narrowly lanceolate with serrated or entire margins.
The flowers may be pink, lilac, mauve or white. The flowers are two-lipped. The upper lip has four oblong lobes with rounded tips, resembling short fat fingers. There are dark, narrow, vertical lines from the base of the upper lip. The lower, two-lobed lip has bright yellow markings at the base on two oblong mounds. This lip has an irregularly rounded margin that may be partly curved under. The almost cylindrical spur at the back of the flower points obliquely downwards and tapers slightly towards its tip. It becomes about 4 mm long.
Flowering happens towards the end of winter and in spring. The fruit capsule that follows a successful flower is laterally compressed and two-chambered.
This specimen was photographed in the Melville Koppies at the beginning of August. The species occurs on stony slopes from southern to north-eastern parts of South Africa and in several of the neighbouring countries in southern Africa (Manning, 2009; Van Wyk and Malan, 1997).