Pimpinella thellungiana H. Wolff

This species has reputed medicinal value (in Shaanxi).

Plants perennial, 30–80(–110) cm, shortly pubescent. Root cylindric, 50–150 × 5–10 mm. Stem little-branched. Basal and lower petioles 5–20 cm; blade oblong-ovate in outline, 4–17 × 2–6 cm, 1-pinnate; pinnae 3–5 pairs, ovate or ovate-lanceolate, 10–40(–70) × 5–20(–40) mm, margins lacerate-incised or pinnatifid, adaxially sparsely pubescent, abaxially densely pubescent. Upper leaves smaller, 1-pinnate, pinnae 2–3 pairs, or reduced to bladeless sheaths. Umbels (2.5–)4–6 cm across; bracts and bracteoles absent; rays 8–20(–25), 2–3(–4) cm, subequal, filiform, glabrous; umbellules 7–12 mm across, 10–25-flowered; pedicels 1.5–5 mm, unequal, glabrous. Calyx teeth obsolete. Petals white, ovate or obovate, apex with incurved lobule. Stylopodium conic; styles ca. 2–3 × stylopodium, spreading. Fruit oblong-ovoid, ca. 3 × 2 mm, glabrous; vittae 3 in each furrow, 4–6 on commissure. Seed face plane. Fl. Jun–Aug, fr. Aug–Oct.

Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi [SE Russia].

Forests, among shrubs, grassy slopes; 600–2300 m.