LEAVES : Leaflets 7-13, linear to narrowly oblanceolate, 0.8-1.2 mm long, 0.5-1.5 mm wide, the terminal one equal to the laterals. NOTES : On rocky knolls and talus at base of sandstone cliffs: Marble Canyon area, endemic to Coconino Co. (Fig. 2A); 1050-1470 m (3450-4850 ft); late Apr-Jun.