Description from Flora of China
Seseli wannienchun (K. T. Fu) Pimenov.
Plants 60–80 cm, pubescent throughout. Caudex simple, stout, exposed. Stem solitary, erect, branched above, solid, finely grooved. Basal leaves numerous; petioles dilated, slightly flattened, 2–7 cm; blade narrowly oblong, 5–15 × 3–6.5 cm, 2-pinnate; leaflets 4–7 pairs, sessile or shortly petiolulate, 3-parted; lateral lobes oblong, 5–15 × 4–10 mm, 1–3 incised-toothed; terminal lobe obovate, base cuneate, 3–5-lobed or dentate, abaxially reticulate and densely pubescent. Synflorescence corymbose; umbels 2.5–4.5 cm across; peduncles stout, densely tomentose; bracts absent; rays 10–14, 0.5–2 cm, slightly unequal, densely villous; bracteoles 10–12, lanceolate, 2.5–3 mm, densely pubescent; umbellules 14–20-flowered; pedicels ca. 2.5 mm. Calyx teeth narrowly triangular or lanceolate-subulate, ca. 1.5 mm. Petals greenish-white, abaxially villous. Stylopodium low-conic; styles short. Young fruit densely pubescent (mature fruit unknown). Fl. Aug.
This incompletely known taxon is recorded only from a few collections.
Two of us (Pimenov & Kljuykov, FOC 14: 130. 2005) treat this as Seseli wannienchun.
Dry grassy slopes; 1200–1400 m. S Gansu (Chengxian, Huixian, Têwo).