Black Medick

Medicago lupulina

Physical Characteristics

Medicago lupulina is a ANNUAL/PERENNIAL growing to 0.5 m (1ft 8in) at a medium rate. See above for USDA hardiness. It is hardy to UK zone 5 and is not frost tender. It is in flower from April to August, and the seeds ripen from July to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, Lepidoptera (Moths & Butterflies). The plant is self-fertile. It can fix Nitrogen. It is noted for attracting wildlife. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil.

Distribution

Europe, including Britain, south and east to N. Africa, the Atlantic Islands and W. Asia.

Habitats

Meadow; Cultivated Beds;

Edible Uses

Edible Parts: Leaves Seed Edible Uses: Leaves - cooked[105]. Used as a potherb[183]. A nutritional analysis is available[218]. Seed - cooked[2, 105, 161]. Parched and eaten or ground into a powder[183]. The seed is said to contain trypsin inhibitors[218]. These can interfere with certain enzymes that help in the digestion of proteins, but are normally destroyed if the seed is sprouted first.

Medicinal Uses

Antibacterial Lenitive Aqueous extracts of the plant have antibacterial properties against micro-organisms[218, 240]. The plant is lenitive[218, 240]. One of our users has sent the following information 'Trypsin inhibitors can be inactivated by the application of heat, for example, boiling for 9 minutes. (Trypsin inhibitors are found in soy). L-canavanine can be destroyed by heat as well. Major saponins in alfalfa but also black medick, known as medicagenic acid and its derivatives, have major antifungal/antimycotic activity that could lend to better medical applications than existing antimycotic drugs that are limited in number and abilities. Medical applications meaning mycoses, which is a consequence of widespread use of immunospuppressive drugs used in transplants, cytotoxic chemotherapy in cancer treatments, broad spectrum antibiotics, recurring mycotic infections in those suffering of AIDS, and a recent hazard of previously agricultural niche saprophyte fungi that are becoming etiological agents and are relatively resistant to conventional therapies.'

Known Hazards

None known