Botanical name: Claytonia perfoliata
Common names: Miner's Lettuce, Rooreh, Indian Lettuce, Winter Purslane
Family: Montiaceae
Origin: North America
USDA Plant Hardiness Zone Map
It is an edible, fleshy, herbaceous, annual plant native to the western mountain and coastal regions of North America. The flowers grow above a pair of leaves that are connected together around the stem so as to appear as a single circular leaf. Mature plants form a rosette; they have numerous erect to spreading stems that branch from the base.
Link to this plant:
https://toptropicals.com/catalog/uid/claytonia_perfoliata.htm