|Spreading stonecrop, Sedum divergens. The white flowers (in focus and not) are Shepherd's cress, Teesdalia nudicaulis.|
I found these on the sandy dunes at Oyster Bay. A patch a foot across, no more, just at shoe height.
|With my fingertip for size. That fingernail is 8 mm. long; I have tiny nails.|
The plants will eventually sprout taller stems, up to 6 inches tall, with showy yellow flowers.