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FOC | Family List | FOC Vol. 10 | Fabaceae | Oxytropis

34. Oxytropis hirsutiuscula Freyn, Bull. Herb. Boissier, sér. 2,. 5: 1021. 1905.

短硬毛棘豆 duan ying mao ji dou

Oxytropis glabra Candolle var. pamirica B. Fedtschenko.

Herbs, 3-10 cm tall, caulescent, arising from a deeply subterranean multiheaded caudex. Stems very slender, with 3 or more apparent internodes, many branched, with whitish tri­chomes. Stipules with a broadly lanceolate distinct part, 4-6 mm, with sparse trichomes, adnate to petiole, basal half con­nate. Leaves 2-8 cm, 15-21-foliolate; leaflet blades ovate-ob­long, oblong, elliptic, or lanceolate, 3-10 × 1.5-3 mm, both sur­faces with appressed white stiff trichomes. Racemes compact to rather lax, many flowered; peduncle 1.5-4.5 cm, shorter than leaves; bracts lanceolate, 2-3 mm, membranous, with sparse black trichomes, margin ciliate, apex acute. Calyx campanulate, 4-5 mm, with black and white trichomes intermixed; lobes sub­ulate, ca. 1/2 as long as tube. Corolla purple; standard 5-9 mm, lamina orbicular, apex emarginate; wings almost as long as standard; keel slightly shorter than wings, beak ca. 0.3 mm. Legume stipitate; stipe to ca. 2.5 mm; body broadly cylindric, 8-15 × 3-5 mm, pendulous, membranous, with appressed black short trichomes, abaxial suture round, adaxial suture deeply grooved, beak 1-2 mm. Fl. Jun-Aug, fr. Aug-Sep.

Meadows in alpine areas and along riversides; 3800-4300 m. Qinghai, Xinjiang [Kazakhstan, Kyrgyzstan, Russia (W Siberia), Tajiki­stan, Turkmenistan, Uzbekistan].


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