Astragalus tanaiticus, C. Koch

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 116

47. A. tanaiticus C. Koch , Linnaea 24: 94 (1851).

Acaulescent, with branched stock. Leaflets 12-18 pairs. Peduncles 5-10 cm; racemes lax, with 10-30 flowers; bracts f as long as calyx; pedicels c. 2-5 mm. Standard 23-30 mm. Legume c. 15 mm. • S. & E. Ukraine and S. Russia. Rs (W, E). (48-53). A. exscapus group. Acaulescent or almost so, with branched stock. Leaves 7-30 cm; leaflets 6-30 pairs, narrowly oblong to orbicular-ovate; stipules 10-20 mm, ovate- to linearlanceolate. Peduncles up to | as long as leaves, or racemes subsessile; pedicels 3-7 mm; bracts | as long as or equalling calyx. Calyx-teeth as long as tube. Corolla yellow; standard glabrous. Legume trigonous, semi-bilocular. 1 Standard 30-35 mm; calyx 15-20 mm 48. longipetalus 1 Standard less than 30 mm; calyx not more than 15 mm 2 Leaflets ovate to ovate-elliptical 3Legume 15-25 mm, densely villous 49. exscapus 3 Legume c. 30 mm, sparsely hairy or glabrous 50. huetii 2 Leaflets oblong-ovate or narrower 4 Legume glabrous 53. wolgensis 4Legume hairy 5 Leaflets 10-15 pairs; legume c. 15 mm wide, ovoid 51. utriger 5 Leaflets 15-30 pairs; legume 5-10 mm wide, oblong-ovoid 52. henningii