Valerianella locusta aka European Cornsalad

Valerianella locusta, also known as mâche, common cornsalad, or lamb's lettuce, is a small, herbaceous, annual flowering plant in the honeysuckle family Caprifoliaceae. Native to Europe, western Asia, and north Africa, it is widely consumed as a leaf vegetable. This attractive and tasty corn salad forms compact rosettes of glossy, wide leaves and can be harvested throughout winter. Mâche is a tender salad green that thrives in cool weather and grows wild in many areas, including corn fields. It is available in different varieties, with larger leaves and sweeter flavors bred specifically for backyard gardening. Mâche grows in low rosettes of dark green leaves up to 4 inches long. While it is technically hardy in zones 5 to 8, it is typically grown as an annual in all zones. There are two types of mâche to choose from: large-seeded and small-seeded. The small-seeded varieties thrive in cool weather, while the larger-seeded varieties can withstand the initial summer heat and may resist bolting until June. Mâche is usually sown by seed in late fall or early spring, and in warmer climates, it can serve as a winter crop. Leaves can be harvested at any time, but the plant reaches full maturity and completes its life cycle in just 40 to 70 days.