Andrographis laxiflora

Herbs to 50 cm tall, isophyllous or anisophyllous. Stems erect or procumbent, 4-angled, glabrous or pubescent. Petiole 3-10 mm; leaf blade ovate, 1.5-9 × 1.5-3(-5.5) cm, both surfaces glabrous, secondary veins 5 or 6 pairs on each side of midvein, base slightly attenuate and decurrent onto petiole, margin entire, apex acuminate to shortly acuminate. Inflorescences axillary or terminal, racemes or panicles of racemes, these sometimes reduced and flowers appearing as clusters in leaf axils or at ends of long peduncles; rachis glabrous or pubescent (trichomes non-gland-tipped or gland-tipped); bracts linear, subulate, or lanceolate, 1-3 mm, glabrous or pubescent; bracteoles subulate, glabrous or pubescent. Pedicel 0.5-2 mm, glabrous or pubescent. Calyx 2-4 mm, outside glabrous or pubescent, lobes subulate. Corolla white with purplish or pinkish coloration on lips, 0.8-1.2 cm, outside pubescent with gland-tipped trichomes; tube 6-9 mm, base curved, dorsally ± gibbous; lower lip 1.5-4 mm, lobes 0.5-2 mm; upper lip 1.5-4 mm, erect (± parallel to lower lip), entire to 2-lobed. Stamens included in corolla tube. Capsule linear-cylindric, 10-20 × ca. 2 mm, glabrous or pubescent with gland-tipped trichomes, 16-20-seeded. Seeds ca. 1 × 0.7 mm, rugose. Fl. Aug-Nov, fr. Nov-Mar. -- source: Efloras