Spermacoce

Annual or perennial herbs or small subshrubs. Stems often 4-angled. Leaves opposite or in false whorls. Stipular sheath present, divided into 1-many fimbriae. Flowers bisexual, usually in axillary many flowered clusters (which may run together to form a spike-like inflorescence); less often in terminal capitula. Flowers frequently intermixed with numerous ± scarious, filiform bracteoles. Calyx lobes 2-4(-8). Corolla funnel-shaped or salver-shaped; lobes (3-)4. Stamens 4, anthers usually exserted. Ovary 2-locular. Fruit usually a 2-valved capsule.