Tilingia ajanensis Regel & Tiling, Fl. Ajan. 97. 1858; Cnidium ajanense (Regel & Tiling) Drude; Selinum tilingia Maximowicz, nom. illeg. superfl.; Cnidium tilingia (Maximowicz) Takeda.

Plants 50–80 cm, essentially glabrous (rays puberulent). Root cylindrical, thick. Stem single or multicipital, purplish, striate and branched, base clothed in fibrous remnant sheaths. Basal leaves petiolate; petioles 5–10 cm; blade triangular-ovate, 8–10 × 5–8 cm, ternate-2–3-pinnate, primary pinnae 4–6 pairs; ultimate segments oblong-ovate. Upper leaves ternate-1-pinnate, or 3-lobed, segments linear. Umbels terminal and lateral, 2.5–4 cm across; peduncles 3–15 cm; bracts 1–5, linear or absent; rays 7–11, unequal, 1–3 cm; bracteoles 3–5(–8), linear; umbellules 10–15-flowered. Calyx teeth conspicuous, triangular-lanceolate. Petals white or pinkish, base shortly clawed. Stylopodium short conic; styles reflexed, ca. 2 × stylopodium. Fruit oblong-ovoid, 3–4 × 2–3 mm; ribs prominent, subequal; vittae 1–3 in each furrow, 2–4(–6) on commissure. Seed face plane. Fl. Jul–Aug, fr. Aug–Oct.

Pebbly slopes, grasslands. Hebei, Heilongjiang, Jilin, Shandong [Japan, Russia (Siberia)].