BotanyHerbs perennial, pubescent or hispid.
Stems erect, leafy.
Leaves: basal rosette.
Inflorescence: cymes in terminal paniculate clusters, ebracteate.
Flowers: short pedicellate.
Calyx: 5-parted more than 2/3 length, slightly enlarged in fruit.
Corolla: light blue or pale purplish red, funnelform; appendages borne below middle of corolla tube, oblong, papillose, apex obtuse; lobes orbicular, more than 2 × as long as tube.
Stamens: equal, exserted, inserted between appendages, lower part of filaments adnate to corolla tube; anthers oblong, obtuse; gynobase flat.
Fruits: nutlets erect, semiovoid, adaxial aperture 2-layered, longitudinal, ringlike, abaxially convex, tuberculate, inside layer membranous; attachment scar basal, orbicular-triangular; style persistent, ca. 2 × as long as nutlets; embryo straight, erect.