I think this is Abronia fragrans. But this one is different in several regards. The Plant itself is larger in overall size compared to other A. fragrans. But everything else is smaller in size. The leaves are smaller, the flower clusters are smaller, and the fruit are smaller.
Approximately 4 centimeters. Flew before I could take additional photos.
Rare white flowered mutation
found growing in a disturbed, cattle grazed area on the meadow pond trail @ pleasanton ridge regional park