萨拉套棘豆 sa la tao ji dou

Herbs, 20-45 cm tall, caulescent, from a simple or several-branched caudex. Stems erect or ascending, with 2-4 or more apparent internodes, with spreading long trichomes. Stipules narrowly triangular, ca. 1.1 cm, herbaceous to membranous, with spreading white trichomes. Leaves 7-15 cm, 11-15-foliolate; petiole and rachis with spreading long trichomes; leaflet blades oblong-lanceolate to broadly lanceolate, 1-3 × 0.3-0.8 cm, both surfaces with spreading sparse long trichomes, base rounded, apex acute. Racemes compact to lax, several to many flowered; peduncle 10-35 cm, thick, longer than leaves, with spreading dark brown trichomes; bracts lanceolate, 5-8 mm, membranous, with white and black long trichomes, apex acuminate. Calyx campanulate, 8-10 mm, with black and white short trichomes; lobes linear, 4-5 mm. Corolla yellow; standard 1.3-1.5 × 0.8-1.2 cm, lamina orbicular, apex 2-lobed; wings shorter than standard; keel as long as wings, beak 0.5-1 mm. Legume stipitate; stipe 1.5-2 mm; body oblong-ovoid, 2-3 × 0.5-0.6 cm, erect, leathery, 2-locular, with spreading black and white trichomes. Fl. Jun-Aug, fr. Jun-Aug.

Hillsides, alpine grasslands, between stones in valleys, roadsides, Picea forest margins; 1600-3600 m. Gansu, Sichuan, Xinjiang [Ka­zakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan].