Fabaceae |
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Medicago sativa L. subsp. coerulea (LESS. EX LEDEB.) SCHMALH. |
Medicago L. |
M. sativa L., Sp. PL 778 (1753). Perennial herb, stems procumbent, ascending or erect, 15-70 cm, adpressed-pilose or subglabrous. Stipules entire or incised in lower part. Leaflets 4-18 x 2-10 mm, adpressed-pubescent, those of lower leaves obovate, those of upper leaves longer, cuneate-oblanceolate to linear-oblanceolate, serrate above, with the terminal tooth usually longer than the lateral teeth. Peduncle much longer than petiole, raceme l-3(-4) x as long as broad, 8-30-flowered. Flowers 6-12 mm, dusky violet or pale lavender (very rarely white). Calyx teeth subulate, 1-2 x as long as conical green tube. Fruit in an open spiral of 2-4 loose coils, 5-9 mm diam., reticulate-nerved, adpressed-pilose or rarely glabrous. Seeds 10-20, 1-2.5 mm long, yellow or brown. 2n — 16, 32. 1. Fruits 5-9 mm diam.; seeds 2.2-2.5 mm; flowers 6-12 mm subsp. sativa 1. Fruits 2.5-3.5(-5) mm diam.; seeds 1.6-2.1 mm; flowers 5-6 mm subsp. coerulea Subsp. coerulea (Less, ex Ledeb.) Schmalh., Fl. Sred. Juz. Ross. 1:226 (1895). 2n = 16. Figure 13, p. 493. Syn: M. coerulea Less, ex Ledeb., Fl. Ross. 1:526 (1843); M. lessingii Fisch. & Mey. ex Kar. in Bull. Soc. Nat. Mosc. 1:150 (1839). Ic: Gross, Obs. Kr.-Kavk. Medicago 33 t. 13 (1919); Fl. Gruzii 5: t. 202, 207 (1949). Fl. 5-7. Calcareous S. slopes, ruins, etc., 1500-2000 m. Holotype: [USSR] ad m. caspium, Lessing (LE). E. Anatolia, local. A8/A9 Erzurum: Oltu, 16 vii 1910, Nesterov (LE). A9 Kars: Ani, ruins, 18 vii 1908, R. Schmidt (ERE). A10 Ağri: Doğubayazit, Cornelius {fide K. Lesins). B7 Tunceli: above Pertek, 1500 m, D. 31524! S. Russia, Crimea, Caucasia, Iran, C. Asia. There is some morphological overlap between the wild subsp. coerulea (2n = 16) and subsp. sativa (2n =32). |