1 |
Leaves 3-foliolate; leaflet blades of mature leaves 1.7-4.5 cm. |
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64 O. diversifolia |
+ |
Leaves 5-35-foliolate; leaflet blades 0.2-1(-1.4) cm |
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(2) |
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2 (1) |
Racemes many flowered (usually 10 or more) |
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(3) |
+ |
Racemes (1 or)2-8(-10)-flowered |
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(5) |
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3 (2) |
Corolla yellow, standard ca. 13 mm. |
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65 O. maduoensis |
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Corolla purple, standard 6-8 mm |
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(4) |
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4 (3) |
Plants acaulescent or essentially so; peduncle shorter than leaves; stipules 7-9 mm; beak of corolla keel ca. 0.3 mm. |
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66 O. linearibracteata |
+ |
Plants caulescent, with 2 or more internodes apparent; peduncle equaling or shorter than leaves; stipules 4-5 mm; beak of corolla keel ca. 2 mm. |
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67 O. lanceatifoliola |
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5 (2) |
Corolla standard 0.5-0.9 cm; calyx 3.4-7 mm; racemes 2-5-flowered |
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(6) |
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Corolla standard 0.9-2.6 cm; calyx (5-)6-15 mm; racemes (1 or)2-10-flowered |
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(10) |
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6 (5) |
Corolla white; racemes 2- or 3-flowered; calyx 6-7 mm; herbage green or greenish, not gray. |
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82 O. biflora |
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Corolla purple; racemes 2-5-flowered; calyx 3.4-6 mm; herbage with gray trichomes |
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(7) |
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7 (6) |
Plants 1-2 cm tall; peduncle less than 1 cm, shorter than leaves. |
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80 O. brevipedunculata |
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Plants 2-10 cm tall; peduncle 2-7 cm, subequal to leaves or slightly surpassing them |
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(8) |
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8 (7) |
Leaves 7-13-foliolate; leaflet blades lanceolate to linear-lanceolate, 4.5-10 × 0.5-2 mm; lamina of corolla standard oblong. |
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79 O. pusilla |
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Leaves 11-21-foliolate; leaflet blades ovate or oblong, 3-5 × 1-2 mm; lamina of corolla standard transversely broadly ovate or ovate |
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(9) |
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9 (8) |
Calyx ca. 3.4 mm; corolla wings ca. 6.2 mm, keel ca. 5 mm; plants of Xinjiang. |
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84 O. yanchiensis |
+ |
Calyx 5-6 mm; corolla wings ca. 8 mm, keel ca. 7 mm; plants of Xizang. |
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85 O. cinerascens |
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10 (5) |
Corolla yellow or pale yellow |
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(11) |
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Corolla purple, blue, purplish blue, or light purple |
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(12) |
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11 (10) |
Racemes rather lax; calyx 1.2-1.3 cm; corolla pale yellow, standard rounded at apex, wings truncate to rounded apically; leaflets glabrous. |
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68 O. ciliata |
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Racemes subcompact; calyx 0.8-1 cm; corolla yellow, standard emarginate at apex, wings rounded apically; leaflets with trichomes. |
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77 O. pseudohirsuta |
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12 (10) |
Corolla standard 0.9-1.3 cm, wings 1-1.2 cm |
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(13) |
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Corolla standard (1-)1.5-2.6(-3) cm, wings (1.2-)1.3-2.1(-2.5) |
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(14) |
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13 (12) |
Plants 2-8 cm tall; bracts 5-6 mm; calyx lobes 1.5-1.7 mm; apex of corolla standard emarginate; legume body 1-1.5 cm. |
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78 O. platysema |
+ |
Plants 7-15 cm tall; bracts 2-4 mm; calyx lobes 2-4 mm; apex of corolla standard 2-lobed; legume body 1.4-3.7 cm. |
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81 O. yunnanensis |
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14 (12) |
Corolla standard 1-1.5(-2.1) cm; keel beak (1-)1.5-1.6 mm; legume 3-4 mm wide. |
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83 O. pauciflora |
+ |
Corolla standard (1.5-)1.7-2.6(-3) cm; keel beak 1-3 mm; legume 6-16 mm wide (unknown for O. wutaiensis) |
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(15) |
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15 (14) |
Beak of corolla keel 1.5-3 mm; calyx (1-)1.2-1.6 cm |
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(16) |
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Beak of corolla keel 1-1.5(-1.8) mm; calyx 0.8-1.2(-1.3) cm (to 1.5 cm for O. inschanica) |
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(18) |
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16 (15) |
Bracts 10-14 mm. |
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75 O. assiensis |
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Bracts 3-10 mm |
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(17) |
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17 (16) |
Stipules membranous; leaflet blades broadly elliptic-oblong, oblong, or oblong-linear, 3-7 × 1.5-3 mm, plane; bracts 3-6 mm. |
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69 O. poncinsii |
+ |
Stipules scarious; leaflet blades ovate to lanceolate, 5-10 × 2-4 mm, folded; bracts 6-10 mm. |
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70 O. eriocarpa |
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18 (15) |
Leaflet blades apparently linear (involute) |
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(19) |
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Leaflet blades ovate, oblong-lanceolate, lanceolate, or narrowly lanceolate, plane or only marginally involute |
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(20) |
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19 (18) |
Leaves 5-9-foliolate; corolla standard 2-3 cm, lamina subelliptic. |
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71 O. inschanica |
+ |
Leaves 9-13-foliolate; corolla standard 1.8-2.3 cm, lamina suborbicular. |
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72 O. leptophylla |
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20 (18) |
Leaves 13-21-foliolate; leaflet blades lanceolate to narrowly lanceolate; racemes (2 or)3-5-flowered. |
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76 O. moellendorffii |
+ |
Leaves 17-35-foliolate; leaflet blades ovate or oblong-lanceolate; racemes 2-8-flowered |
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(21) |
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21 (20) |
Corolla wings rounded at apex; racemes compact, 2-4-flowered; stipules ca. 3 mm. |
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73 O. wutaiensis |
+ |
Corolla wings 2-lobed at apex; racemes rather lax, 2-8-flowered; stipules 5-13 mm. |
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74 O. anertii |