Herbs, polycarpic, gray-green to green or purple, glaucous or not. Stems suberect or later decumbent and rooting, branched, terete, rough with leaf scars, to 8 dm × 1 cm. Leaves opposite, evenly spaced, simple; petiole terete, (often turned obliquely), 1-6 mm; blade lavender-gray, obovate, 2-10 × 1.5-8 cm, margins crenate throughout or apically, apex obtuse, surfaces glaucous; bulbils borne mostly in notches of leaf margins on damaged or fallen leaves. Cymes open, corymbiform, to 1.5 dm diam.; branches to 5 cm. Pedicels 5-15 mm. Flowers: calyx violet-flecked, inflated, 10-18 mm, tube 6-11 mm, lobes deltate, 4-7 mm, shorter than tube, apex acute; corolla orange-red, 18-25 mm, contracted basally, lobes obovate, 5-8 mm, apex obtuse to rounded. 2n = 34.