微唇马先蒿 wei chun ma xian hao

Herbs annual, (6--)25--30 cm tall, glabrous throughout, not drying black. Roots conical. Stems 1--8, erect or slightly ascending. Proximal leaves opposite, distal ones whorled; petiole ca. 2 cm; leaf blade ovate to elliptic-ovate, ca. 1.5 X 1 cm, pinnatipartite; segments 3 or 4 pairs, obovate to oblong, incised-double dentate. Inflorescences nearly 2/3 height of stems, lax; proximal bracts leaflike, distal ones slender petiolate. Pedicel ca. 1 mm. Calyx ovate-campanulate, barely 3 mm, membranous, 2/5 cleft anteriorly; lobes 5, triangular, unequal, posterior one barely 0.7 mm, lateral lobes ca. 1 mm, serrate. Corolla barely 9--10 mm; tube decurved basally, ca. 6 mm; galea ca. 4 mm, ± narrow, apex truncate; lower lip shorter than galea, 2.5--3 mm, lobes emarginate, middle lobe obovate, smaller than lateral pair, projecting. Filaments glabrous. Capsule enclosed by calyx basally, compressed, triangular-ovoid, barely 8--9 mm, apex acute. Seeds oblong, ca. 3 mm. Fl. Jun--Jul, fr. Jul--Aug.

* Abies forests; 3300--3900 m. NW Sichuan.