长叶并头草 chang ye bing tou cao

Herbs rhizomatous perennials, woody, branched, 12-35 cm tall. Stems purplish, glabrous to sparsely pubescent or subglabrous upward, unbranched. Leaves sessile to subsessile, oblong to narrowly lanceolate, 1.5-3.3 cm × 2-5(-7) mm, yellow glandular, subglabrous or abaxially sparsely pubescent only on veins, base attenuate, margin entire or 1-serrulate and involute, apex rounded to somewhat obtuse. Racemes poorly defined, terminal, secund, obliquely spreading upward; floral leaves linear, 0.8-2.5 cm; bracteoles needlelike, ciliolate, inserted on apical 1/3 of pedicels in pairs. Flowers axillary. Pedicel 1.5-2.5 mm, finely puberulent. Calyx 2-2.5 mm, finely puberulent, to 4 mm in fruit; scutellum ca. 1 mm, to 2 mm in fruit. Corolla purple-red, 2-2.2 cm, densely puberulent outside, pilose on conjunctive parts of upper lip and lateral lobes of lower lip inside; tube slightly saccate in front at base, ca. 1.5 mm in diam., gradually dilated to 4 mm at throat; upper lip ca. 2.5 mm; middle lobe of lower lip broadly triangular, to 7 mm wide, margin subentire; lateral lobes triangular-ovate, ca. 2 mm wide. Nutlets unknown. Fl. Mar-Jul, fr. Apr-Aug.

* Wet slopes; ca. 1200 m. Sichuan, Yunnan.