Plants tufted or rosette-forming, green to grayish green. Stems ascending to erect, 1.5–5 dm, hairs 2–3 mm proximally, glands dense distally. Basal leaves ± planar, (3–)4–15 × 1–3 cm, usually villous at least abaxially, often densely so; stipules entire, deeply 2-lobed, or pinnately divided into 3–5 linear lobes; leaflets 2–6 per side, ± separate, narrowly cuneate or lanceolate-elliptic to oblong, 5–20 × (1–)2–5(–6) mm, 1/5–1/2 as wide as long, divided 1/6–1/4 or less to midrib into (0–)3(–5) ± ovate teeth 1–2 mm wide, these restricted to apex. Cauline leaves 2–7; stipules 5–25(–30) mm, divided 3/4+ into linear or linear-lanceolate lobes, or incompletely divided or divided no more than 2/3 into lanceolate, often acuminate teeth. Inflorescences open to congested, flowers usually arranged in ± capitate glomerules or corymbiform clusters. Pedicels 1–3(–6) mm. Flowers 8–16 mm diam.; epicalyx bractlets linear to lanceolate or narrowly elliptic, 1–3 × 0.3–0.8 mm, ± 2/3 length of sepals; hypanthium 2–2.5 × 3–4.5 mm, ± 1/2 to nearly as deep as wide, interior usually glabrous, sometimes sparsely pilose; sepals spreading, abaxially green, 2–4.5 mm; petals white to cream, ± obovate, (2.5–)3–6 × (1.5–)2–5 mm, apex ± rounded to ± emarginate; filaments (0.5–)1–2 × (0.2–)0.4–0.6 mm, anthers 0.4–0.7(–1) mm; carpels (6–)10–15(–20), styles 1.5–3 mm. Achenes brown, 1.6–2.2 mm, faintly rugose.
Home