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beneath, glabrous or scabrous above, lacking defined petioles. Inflorescences terminal racemes or panicles, mostly open; peduncles slender, often bracteate; pedicels bibracteolate or obsolete. Flowers mostly showy, pink, purple or some-times white, the calyx tubular or campanulate, 5-lobed or toothed, the lobes sometimes denticulate; corolla campanulate, the tube straight or slightly curved, slightly inflated upwards, the limb spreading with 5 rounded lobes, sometimes somewhat 2-lipped; sometimes puberulent inside or out; stamens 4, didynamous, the filaments inserted halfway up the corolla tube, mostly pilose, the anther thecae equal or somewhat unequal but all similar in shape, mostly parallel, some-times basally spurred, dehiscing longitudinally; ovary glabrous, 2-locular, the style slender, straight, deciduous, the stigma solitary, terminal. Capsule woody, chartaceous or sometimes leathery, mucronulate, loculicidally and sometimes septicidally dehiscent; seeds many, reticulate, oblong to prismatic.
Herbs or shrubs, annual or perennial, usually erect, branched, virgate, glabrous hirsute or scabrous, eglandular; parasitic on the roots of other plants. Leaves opposite or alternate, often reduced upwards, mostly narrow, entire, glabrous
