Salpinctium

Erect perennial herbs; stems branching from base, glabrous to densely pubescent. Leaves usually petiolate, elliptic to trullate, with cordate or widely rounded bases, entire. Inflorescence terminal, rarely branched, spikes with 5-20 flowers in decussate pairs; bracts linear to very narrowly lanceolate; bracteoles minute, linear. Calyx regular, persistent; lobes 5, linear, glabrous or glandular-pubescent; tube shorter than lobes. Corolla 2-lipped; upper lip 2-lobed, rugula indistinct; lower lip longer and unequally 3-lobed and with a poorly developed palate and faint nectar guides; aestivation ascending; tube longer than lobes, linear, pubescent without, glabrous within. Androecium: fertile stamens 4, didynamous; filaments arising in pairs, glabrous; anthers 2-thecous; thecae subparallel, muticous; staminodes 0. Pollen spheroidal, 2-porate with processes associated with pores; pseudocolpi present; surface reticulate. Disc cupular. Gynoecium: ovary with 2 ovules in each locule, oblong, glabrous or pubescent; style branches 2, equal, cylindriform, longer than broad. Capsule stipitate, with inelastic placental bases. Seeds reniform or pyriform, laterally compressed; surface rough and tuberculate.