Home
Stamens 4 perfect, didynamous, included; filaments of longer stamens markedly curved or twisted at or about middle; anthers bithecal, cells ovoid, equal, confluent at apex; staminode where present, filiform, arising near base of corolla tube.
Capsule ellipsoid-conical, sharply rostrate, downwardly directed in fruit; valves coherent or connivent at apex after dehiscence.
Herbs, perennial, often somewhat shrubby, stems much branched, branches very leafy, procumbent.
Calyx 5-lobed, lobes longer than tube, linear-lanceolate to lanceolate, subequal.
Ovary elongate-conical, bilocular, attenuate into slender style; ovules numerous.
Leaves opposite, simple, serrate-dentate, crenate or entire, petiolate.
Flowers solitary or in 2–3-flowered cymes, pedicels bibracteolate.