碎叶岩风 sui ye yan feng

Athamanta incana Stephan ex Willdenow, Sp. Pl. 1: 1402. 1798; Libanotis patriniana de Candolle; Seseli graveolens Ledebour; S. incanum (Stephan ex Willdenow) B. Fedtschenko.

Plants (25–)30–60(–90) cm. Caudex simple, ca. 1 cm thick. Stem solitary, thick, branching from base or middle, finely grooved to shallowly fluted, densely gray-white tomentose. Petioles densely gray-white pubescent; blade narrow-elliptic, 10–15 × 2–6 cm, 3-pinnatisect; ultimate segments linear, 1–3 × 0.2–0.6 mm, gray-white pubescent on both surfaces, apex apiculate; rachis fluted. Umbels 6–12 cm across; bracts absent or few, linear, acuminate, ca. 5 × 0.5 mm; rays (15–)20–35, 4–5 cm, subequal, densely white tomentose; bracteoles 12–15, ovate-lanceolate, 2.5–3 × 0.5–1 mm, bases fused together, apex sometimes 2–3-toothed, densely pubescent; umbellules 40–50-flowered; pedicels 2–3 mm. Calyx teeth lanceolate, ca. 1 mm, puberulous. Petals white, abaxially puberulent. Fruit ovate or ellipsoid, slightly flattened dorsally, 3.2–4.7 × 2–3.5 mm, densely pubescent; vittae 1 in each furrow, 2 on commissure. Fl. and fr. Jul–Aug.

Dry scrubland, gravelly slopes, sunny places; ca. 1300 m. N Xinjiang (Toli) [Kazakhstan].

Two of us (Pimenov & Kljuykov, FOC 14: 130. 2005) treat this as Seseli incanum.