日照马先蒿 ri zhao ma xian hao

Herbs perennial, barely 6 cm tall. Stems single or few, erect, unbranched, slightly pubescent with lines of dense rust colored hairs. Leaves sparse, opposite; petiole 5--10 mm, pubescent; leaf blade ovate to oblong-ovate, 1.5--2.5 X 0.8--1.2 cm, abaxially sparsely whitish scurfy, adaxially densely rust colored villous, crenate-dentate. Inflorescences racemose, 2--4-flowered; bracts leaflike. Pedicel ca. 3 mm. Calyx ca. 1 cm, slightly cleft anteriorly, densely villous; lobes 5, unequal, posterior one subulate, lateral lobes rounded and serrate. Corolla reddish, 2.4--2.7 cm; tube erect, slightly longer than calyx; galea falcate, with 1 marginal tooth on each side; lower lip 1.3--1.5 X 0.9--1.1 cm, ± praemorse, lobes rounded, middle lobe larger than lateral pair, erose-denticulate. Filaments glabrous. Fl. Aug, fr. Sep.

* Grass on hillsides; ca. 4200 m. SW Sichuan.