Pedicularis tenera H. L. Li

Herbs perennial, ca. 10 cm tall, slightly pubescent throughout, not drying black. Roots slender, woody. Stems several, dark purple, central stem usually erect or procumbent and ascending, with 4 lines of hairs. Leaves glabrous throughout. Basal leaves few; petiole to 1.8 cm. Stem leaves in whorls of 3 or 4; petiole 5--13 mm; leaf blade lanceolate-oblong to ovate-oblong, 1--2.3 cm X 4--7 mm, pinnatipartite to pinnatisect; segments 4--7 pairs, ovate, incised-dentate. Inflorescences 0.2--8.5 cm, interrupted basally; proximal bracts leaflike, distal ones shorter than flowers, broadly ovate, glabrous. Pedicel dark purple, 1.5--10 mm, glabrous. Calyx usually tinged with purple-red, ca. 4 mm, membranous, slightly cleft anteriorly; tube ca. 3 mm; lobes 5, unequal, sparsely purple villous along veins and margins. Corolla purple; tube 9--10 mm, strongly decurved basally, expanded apically; galea falcate, ca. 6 mm; lower lip 6--7 mm, middle lobe ca. 3.5 mm wide, wider than long, lobes ± rounded. 2 filaments pubescent, 2 glabrous. Fl. Jul--Aug, fr. Aug--Sep.

W Sichuan.

* Alpine meadows, screes of limestone mountains; 4400--4600 m.

Pedicularis tenera là loài thực vật có hoa thuộc họ Cỏ chổi. Loài này được H.L. Li mô tả khoa học đầu tiên năm 1948.

细茎马先蒿（学名：Pedicularis tenera）是列当科马先蒿属的植物，是中国的特有植物。分布于中国大陆的四川等地，生长于海拔4,400米至4,600米的地区，多生长在高山草地和石灰岩山上的碎石坡中，目前尚未由人工引种栽培。