Saxifraga sullivantii Torrey & A. Gray, Fl. N. Amer. 1: 575. 1840; S. renifolia Rosendahl

Plants not stoloniferous. Flowering stems 5-40 cm, erect to ascending. Leaves: blade 1-12 cm wide, 1-2 times toothed, 7-13-lobed for 1/4-1/2 length to shallowly and somewhat irregularly 7-25-lobed; lobes cuneate-oblong to crenate and 1-2 times denticulate to coarsely subcrenulate, margins erose with long bristles to lacinate. Inflorescences erect to decumbent, primary and higher-order branches ascending relative to central axis. Flowers: hypanthium tubular-campanulate, portion distal to adnation to ovary not marked by conspicuous flaring, 1.3-3.2 × 1.2-2.1 mm, stipitate-glandular proximally; sepals triangular-ovate to lanceolate-oblong, not as broad as long at apex, 0.8-1.5 × 0.6-1.1 mm, apex acute; petals unlobed, 1.7-3.5 mm, ovate and abruptly narrowed in claw to lanceolate and gradually narrowed into claw, 0.7-1.6 mm wide; ovary ca. 1/2 inferior. Capsules cylindric-ovate to cylindric-elliptic, 3-7.5 × 1.3-3.2 mm, beaks ± spreading. Seeds usually tan, rarely red-brown, 0.7-1.2 × 0.2-0.5 mm, main body (excluding winged margins) 0.4-0.7 mm. 2n = 14.

Flowering May-Jul. Moist limestone and sandstone cliffs; 300-700 m; Ill., Ind., Iowa, Ky., Minn., Mo., Ohio, Tenn., Va., Wis.