Trigonella caerulea ( blue fenugreek, blue melilot)) is an annual herb in the family Fabaceae. It is 30–60 cm tall. Its leaves are obovate or lance-shaped, 2–5 cm long, 1–2 cm wide and saw-toothed in upper part. Its flower stalks are compact, globular racemes, longer than the leaves. The are twice as short as the corolla, its teeth are equal to the tube. The corolla is 5.5-6.5 mm long and blue. The Legume are erect or slightly curved, compressed, 4–5 mm long with beak 2 mm. The seeds are small and elongated. It blossoms in April–May, the seeds ripen in May–June. It is self-pollinated. AgroAtlas, accessed 29 July 2013.
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