Scrophularia L.
Perennial, biennial or annual herbs or small shrubs with square stems. Lvs usually opposite, entire to pinnatisect. Fls in cymes in the axils of upper lvs or bracts, and sometimes forming terminal racemes or panicles, occasionally solitary. Calyx with 5 equal lobes. Corolla tube short, ± globose; limb with 5 lobes, usually 2-lipped but sometimes almost regular. Fertile stamens 4, included or exserted; staminode usually 1 and scale-like, occasionally 0. Capsule globose to ovoid, septicidal. Seeds numerous, ovoid, rugose, small; wing 0.
Key
1
Stem narrowly winged below infl.; staminode orbicular or suborbicular with apex rounded
Stem only angled below infl.; staminode much wider than long with apex truncate to retuse
100-200 spp., N. temperate and tropical America. Naturalised spp. 2.
