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

14. Medicago monantha (C. A. Meyer) Trautvetter, Bull. Sci. Acad. Imp. Sci. Saint-Pétersbourg. 8: 272. 1841.

单花胡卢巴 dan hua hu lu ba

Trigonella monantha C. A. Meyer, Verz. Pfl. Casp. Meer. 137. 1831; T. geminiflora Bunge.

Annual herbs, 20-40 cm. Stems prostrate or ascending, branched at base, ridged, pilose. Leaves 3-foliolate; stipules lan­ceolate-hastate, 5-7 mm; petioles 1-2.5 cm; leaflets oblong-obovate to obtriangular, (3-)5-12 × (3-)4-8 mm, pilose at least on midrib abaxially, subglabrous adaxially, lateral veins 5-8 pairs, base cuneate, margin denticulate in apical 2/3, apex trun­cate. Flower axillary, solitary at basal portion of stem, 2(or 3) in apical portion, sessile or peduncles developed, 6-8 mm, with straight dense hairs. Corolla yellow, 6-8 mm; standard evi­dently longer than wings and keel. Ovary linear; ovules 18-24; style short and flat. Legume straight, cylindric, 40-50(-80) × 1-2 mm, appressed pubescent, veins reticulate, forming a pat­tern of squares or pentagons, apex hooked. Seeds numerous, brown, oblong-elliptic, ca. 2 mm. Fl. May-Jul, fr. Jun-Aug.

Clay soils in deserts, wilderness tracts, or roadsides. Xinjiang [Afghanistan, Mongolia, Pakistan; C and SW Asia].


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