Ajuga macrosperma Wall. ex Benth.

Herbs erect or prostrate, sometimes stoloniferous, hairy or glabrous. Stems 15-40 cm or more tall, pilose or subglabrous when old, young parts densely white villous. Petiole 2-5 cm or more, narrowly winged, sometimes purplish, pilose; leaf blade oblanceolate, ovate-lanceolate to elliptic-ovate, 4-10(-15) × 1.8-4.5(-6.5) cm, villous to strigose, base cuneate-decurrent, margin undulate to irregularly undulate-crenate, ciliate, apex obtuse to acute. Verticillasters 6-12-flowered, in axils of apical and mid stem leaves, apically forming spikes; apical floral leaves bractlike, ovate-lanceolate, slightly longer than verticillasters. Pedicel very short or obsolete. Calyx funnelform, 5-6 mm, veins strigose; teeth ovate, to 1/3 as long as calyx, apically rounded, strigose, gray villous-ciliate at margin. Corolla blue to purple, tubular, 7-9 mm, obliquely spreading, slightly curved near middle, glabrous or pilose, villous annulate inside; upper lip oblong, straight, lobes subovate; middle lobe of lower lip narrowly cordate, emarginate at apex; lateral lobes oblong, as long as or slightly longer than upper lip. Nutlets areole 2/3-3/4 as long as adaxial side of nutlet. Fl. Jan-Mar, fr. Mar-May (or later).

Guangdong, Guangxi, Guizhou, Taiwan, Yunnan [Bhutan, India, Laos, Myanmar, Nepal, Thailand, Vietnam]

Shady areas in forests, limestone forests, ravines, grassy roadsides; 400-2600 m.

Ajuga macrosperma là một loài thực vật có hoa trong họ Hoa môi. Loài này được Wall. ex Benth. mô tả khoa học đầu tiên năm 1830.

大籽筋骨草（学名：Ajuga macrosperma）为唇形科筋骨草属下的一个种。