Here are the typical fruits of an umbellifer. They are ovals, more or less elangated and split up in two parts, each containing a seed. In the picture below the fruit is covered with white hairs that stiffen when the seed ripens. The pink protrusions are the remnants of pistils, two in every single flower.
They are the fruits of a White Lace Flower (Orlaya grandiflora). 
It flowered in June on a poor and dry soil, and it looked like, well, lace.