[Wikipedia] Range, Edibility, Fossilized Seeds: Montia is a genus of plants in the family Montiaceae. Species in this genus are known generally as miner's lettuce or water chickweed. All of the species in the genus have edible leaves.[2] It is found worldwide, except in Asia.[1] Montias are known from fossilized seeds recovered from sediments of the Pleistocene Tomales Formation and from a small paleoflora at San Bruno. (link added by Mary Ann Machi)