柱冠西风芹 zhu guan xi feng qin

Plants 25–60 cm, polycarpic, glaucescent throughout. Caudex branched. Stems several, branched at base or above, solid, terete, glabrous or minutely scabrid at base, branches elongate, rigid. Basal leaves numerous, petioles puberulous, sheaths broadly ovate-lanceolate and scarious-margined; blade oblong, 7–20 × 2–7 cm, 2–3-pinnately dissected; ultimate segments linear-lanceolate, 5–15 × 1–2 mm, acute. Synflorescence thyrsoid; umbels 3–6 cm across; rays 6–10, 0.1–2.2 cm, unequal; bracts absent or 1–2, small, early deciduous; bracteoles 6–8, ovate-lanceolate, longer than flowers, apex acuminate, pubescent, margin scarious; umbellules 7–15-flowered; pedicels 1.5–3 mm. Calyx teeth obsolete. Petals white, oblong or suborbicular, abaxially puberulous. Stylopodium conic, base undulate; styles slender, reflexed. Fruit oblong, slightly dorsally compressed, (3–)4–6 × (1.5–)2.5–3.5 mm; dorsal ribs filiform, prominent, lateral ribs slightly broader than dorsal, narrowly winged; vittae 3–5 in each furrow, 8–12 on commissure, unequal. Fl. and fr. Jun–Sep.

Dry, gravelly slopes, steppe; 1000–1300 m. Xinjiang [Kazakhstan].

This species was misidentified in FRPS (55(2): 197. 1985) as Seseli tschuiliense Pavlov ex Korovin, which is distributed in C Asia.