Lupinus mutabilis, commonly known as the Andean lupin or tarwi, is an annual herbaceous plant native to the high Andean regions of Ecuador, Peru, and Bolivia. It thrives in cool climates at altitudes ranging from 2625 to 9843 feet, where it is often found in disturbed sites and cultivated fields. This species can grow up to 9 feet tall, with distinctive palmate leaves and spires of blue to white flowers that bloom in the summer months. The flowers are moderately showy and attract pollinators. The seeds, known for their high protein and oil content, are encased in pods and must be processed to remove bitter alkaloids before consumption.

The Andean lupin is valued for its edible seeds, which have been a staple food in the Andean diet for over 1500 years. It is also recognized for its ability to fix nitrogen in the soil, making it beneficial for crop rotation and improving soil health. In cultivation, it prefers well-drained soils and can tolerate poor soil conditions. While it requires regular watering, it is important not to overwater, as it is susceptible to root rot. Full sun to partial shade is ideal for optimal growth. The Andean lupin is not commonly found in ornamental horticulture but is gaining attention for its potential in sustainable agriculture and as a plant-based protein source.CC BY-SA 4.0