- A herb, Trigonella foenum-graecum, with 10-cm-long seed pods containing irregular yellow seeds about 4 mm long. The seeds are cooked or roasted (but not too much), before use, to develop the flavour, and they have an aromatic smell. They are ground for use as a spice especially in commercial curry powders and other spice mixtures and can be sprouted for salad purposes. The leaves, known as methis, are used as a vegetable and lose their bitterness on cooking. dried fenugreek leaves are used as a flavouring and in marinades.