73. Boechera perstellata (E. Braun) Al-Shehbaz, Novon 13: 388. 2003; Arabis perstellata E. Braun, Rhodora 42: 47. 1940. TYPE: United States, Kentucky: Franklin Co., Elkhorn Creek, wooded hillsides, 6 May 1936, E. L. Braun 1226 (holotype, GH!).
Arabis perstellata var. ampla Rollins, Rhodora 62: 243. 1960. TYPE: United States, Tennessee, Davidson Co., ca. 1 mile NW of junction of Couchville Pike and Fuqua Road, off Fuqua Road and about 3 miles NE of Una, 28 May 1960, R. B. Chanell 7998 (holotype, GH!; isotype, VDB).
Plants mostly short-lived perennials, with non-woody caudices, lacking crowded, persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 2–5 per plant, arising near ground surface from margin of basal rosettes, (1–)2–8 dm, lower parts with many short-stalked, 3–4-rayed trichomes 0.1–0.5 mm, upper parts similarly pubescent. Leaves at stem bases obovate to oblanceolate, (5–)10–45 cm wide, coarsely dentate or rarely sinuate, ciliate on petiole base, blade surfaces moderately pubescent with short-stalked, 3–4(–6)-rayed trichomes 0.1–0.5 mm; cauline leaves 6–25, concealing stem proximally, the uppermost pubescent, with auricles 1–6 mm. Inflorescences mostly unbranched, 10–40-flowered; fruiting pedicels 5–15 mm, mostly horizontal, straight or rarely slightly curved, with spreading, simple trichomes. Flowers ascending at anthesis; sepals pubescent; petals purplish, 3–4 ´ 0.7–1.0 mm, glabrous; ovules 12–20 per fruit. Fruits (1.5–)2–3.3 cm ´ 0.8–1.0 mm, mostly horizontal, not appressed to rachises, not secund, straight, with parallel edges, sparsely pubescent throughout; style 0.4–0.8 mm. Seeds uniseriate, 0.8–1.1 ´ 0.6–0.8 mm, wingless. 2n = 14.
Habitat: calcareous bluffs and wooded hillsides.
Distribution: United States (Kentucky, Tennessee).