From the genus Oenothera in the Onagraceae family Commonly called the Evening primrose family.
Leaves form a basal rosette at ground level and spiral up to the flowering stems; the leaves are dentate or deeply lobed (pinnatifid). The flowers of many species open within less than a minute in the evening, hence the name “evening-primrose”, most are yellow. (wikipedia)
“Young roots can be eaten like a vegetable (with a peppery flavor), or the shoots can be eaten as a salad” (Wikipedia) I’ve also found that the flowers are edible as well in a few wild edibles books. I have tried them. They are a sweet treat.