拉普兰棘豆 la pu lan ji dou

Phaca lapponica Wahlenberg, Veg. Clim. Helv. Sept. 131. 1813; Oxytropis amoena Karelin & Kirilov; O. carinthiaca Fischer-Ooster; O. thomasii Gaudin.

Herbs, 8-30 cm tall, caulescent, from a simple or branched caudex, tufted. Stems with 2 or more internodes apparent, pu­bescent with appressed pale yellow and black trichomes. Stip­ules ovate-lanceolate with an ovate-lanceolate distinct part, 4-10 mm, herbaceous, with sparse trichomes, basal half connate, apex acute. Leaves 3-16 cm, 17-37-foliolate; petiole and ra­chis with appressed white trichomes; leaflet blades lanceolate to elliptic-lanceolate, 10-17 × 1-5 mm, both surfaces with ap­pressed trichomes, base rounded to obtuse, apex acute. Ra­cemes many flowered; peduncle 2-22 cm, as long as or longer than leaves, basally with appressed black and white trichomes, apically with appressed black trichomes; bracts lanceolate-line­ar to linear, 2-6 mm, with appressed white and black trichomes. Calyx campanulate, 5-7 mm, densely black and white pubes­cent; lobes lanceolate-subulate, 1.5-3 mm. Corolla pale purple; stan­dard 0.8-1.2 cm, lamina orbicular, apex emarginate; wings 7-10 mm, apex obliquely truncate and broadly emarginate; keel 7-8 mm, beak short and indistinct or to 2.5 mm. Legume stipi­tate; stipe 2-3 mm; body cylindric, ovoid, or narrowly cylin­dric, 8-14 × 4-5 mm, pendulous, inflated, thickly membranous, 1-locular, with appressed dense black trichomes, adaxial suture widely grooved, beak short. Fl. Jun-Aug, fr. Jul-Sep. 2n = 16.

Meadows in alpine areas, gravelly areas, riverbanks; 3300-4600 m. Shaanxi, Xinjiang, Xizang [India, Kazakhstan, Kyrgyzstan, Nepal, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbekistan; Europe].