长萼鸡眼草 chang e ji yan cao

Lespedeza stipulacea Maximowicz, Prim. Fl. Amur. 85. 1859; L. striata (Thunberg) Hooker & Arnott var. stipulacea (Maximowicz) Debeaux; Microlespedeza stipulacea (Maxim­owicz) Makino.

Herbs, prostrate, ascending, or erect. Stem and branches with sparse upward-pointing white hairs. Stipules ovate, 3-8 mm, longer than petiole or sometimes nearly equal, shortly cili­ate; petiole short; leaflets obovate or broadly obovate, terminal one 0.5-1.8 cm × 3-12 mm, base cuneate, apex emarginate or nearly truncate. Flowers 1 or 2, axillary. Pedicel hairy. Calyx broadly campanulate; standard elliptic, shorter than keel, base attenuate, clawed, apex emarginate; wings narrowly lanceolate, nearly equal to standard; keel obtuse, with dark purple spots adaxially, intermixed with apetalous flowers. Legume ovoid or elliptic, ca. 3 mm, usually 2.5-3 × as long as calyx, slightly compressed. Fl. Jul-Aug, fr. Aug-Oct. 2n = 20, 22*.

Roadsides, grasslands, mountain slopes, stable or semistable sand dunes; 100-1200 m. Anhui, Fujian, Guangdong, Guangxi, ?Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Taiwan, Zhejiang [Japan, Korea, Russia; naturalized in SE United States].

This plant’s uses are the same as those of Kummerowia striata.