3. Libanotis wannienchun K. T. Fu, Fl. Tsinling. 1(3): 458. 1981.
万年春 wan nian chun
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.
Dry grassy slopes; 1200–1400 m. S Gansu (Chengxian, Huixian, Têwo).
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.