Yellow Evening Primrose (Camissonia taraxacoides)
Family: Onagraceae
There are a number of species of "Evening Primrose", called Camissonia by some and Oenothera by others. Below is the "Yellow Evening Primrose", the commonest species found on our lands:
For the other two species of Camissonia we see on our lands, see Mustard Evening Primrose and Brown-eyes.