Mountain Nailwort
or
Shale Whitlowwort
Paronychia montana
From Flora of West Virginia
Annual, stems and branches diffuse, short-jointed, minutely pubescent, rather uniformly dichotomous throughout; leaves spatulate to elliptic-spatulate, 4-11mm long, glabrous or nearly so; sepals ovate to elliptic-ovate, about 1mm long, cucullate at the abex and bearing a short mucro; style elongate, 2-cleft at the summit; utricle shorter than the calyx. August, September. Frequent on dry shale barrens along the eastern slopes of the Alleghenies.