Yellow wildflower, four petals, alternate branching, appears to be member of mustard family.
Seen at mouth of elwha river, beach-like ecology, small yellow flowers with four petals
It's mustard week at iNaturalist, so I noticed lots of this bright yellow flower near the estuary.
Species: B. orthoceras
H: Heavily disturbed landfill on old roadbed
Leaves shiny, yellow mustard flowers .5cm diameter, plant .5 m tall
Barbarea orthoceras is a species of flowering plant in the mustard family known by the common name American yellowrocket. It is native to North America, including much of Canada and the western United States, as well as parts of Asia. It grows in moist areas such as meadows and riverbanks. This is a perennial herb producing a stiff, branching stem to heights between 10 and 60 centimeters. The leaves are a few centimeters long and generally...