Bird's egg pea / ceramic milk vetch / painted milk vetch

From the Agate Plant List: " it has weak, stick-like stems, 2 to 15 inches long, often lying on the ground. The leaves are very slender, grasslike. the small pea-like flowers, 2 to 7 per stem are white or pinkish. The fruit is a pod, 1 to 2 inches long, bladder-like and cream-colored with splotchy red spots, that resembles a bird's egg. The pods appear late June through July."