Wahlenbergia virgata Engl.

virgata: twiggy, with straight, slender twigs

Wiry, much-branched, more or less erect perennial herb, up to 70 cm. Leaves few, small and scale-like, scattered along the stem. Flowers white, sometimes pale blue or yellowish; corolla lobed for about 2/3 of the length.

From the Sudan and Ethiopia.southwards on the eastern side of Africa to S Africa