Erect or diffuse: root sometimes yielding red tint: Lvs. alternate: fls. yellow or violet, in racemes or cymes, the color changing with the age of the blossom; corolla slender-tubed, with 5 obtuse lobes, the throat devoid of scales; stamens included; style usually bifid: fr. normally of 4 erect nutlets. —A dozen species in Asia and N. Afr. of easy cult. in gardens. | Erect or diffuse: root sometimes yielding red tint: Lvs. alternate: fls. yellow or violet, in racemes or cymes, the color changing with the age of the blossom; corolla slender-tubed, with 5 obtuse lobes, the throat devoid of scales; stamens included; style usually bifid: fr. normally of 4 erect nutlets. —A dozen species in Asia and N. Afr. of easy cult. in gardens. |