Medhanie, G. (2006) Nanorhinum in Flora of Somalia 3: 273-276
Plants dwarf shrubs or herbs, glabrous or pubescent, hairs glandular or not. Leaves usually alternate, lower and upper leaves usually distinctly different; upper leaves petiolate to subsessile; blades simple or deeply divided, palmately veined, bases hastate or sagittate, margins entire, dentate or lobed, tips acuminate. Inflorescences bracteate racemes or of solitary, axillary pedicellate flowers. Flowers bisexual; calyces deeply divided, lobes entire, more or less equal; corollas united, tubular, tubes usually spurred, rarely the bases merely saccate; corolla limbs 2-lipper, the upper lips 2-lobed or emarginate, shorter than the lower lips, lower lips usually broad and spreading with a low palate, palates glabrus to lanate, partly close the mouth of the tubes; stamens 4, 2 long and 2 short, included, a minute staminode also present; anthers glabrous, marginally coherent, forming a riglike structure; ovaries superior, 2-celled; styles simple, erect; stigmas capitate. Fruits capsules with 2, usually equal, many-seeded cells that dehisce simultaneously, sometimes the cells unequal, the small cell being few-seeded and dehiscing later; dehiscence valvate, with 1-3(-6) teeth; seeds tuberculate, tubercles rounded to columnar, usually widely spaced, frequently papillate.
Nanorrhinum in cludes 10 species. The grow from the Canary Islands and Cape Verde in the wst through northern and northeastern Afica to the southwestern and south0central Asia, India, and Myanmar in the East.