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FOC | Family List | FOC Vol. 14 | Apiaceae | Seseli

10. Seseli sessiliflorum Schrenk, Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg. 3: 307. 1845.

无柄西风芹 wu bing xi feng qin

Seseli squarrosum Schischkin.

Plants 15–60(–70) cm, polycarpic. Caudex branched. Stems several, suberect, branching above, solid, terete, glabrous or minutely scabrous, branches elongate and spreading. Basal leaves many, petiolate; blade oblong, 2-pinnately dissected; pinnae 4 pairs, rather remote, shortly petiolulate; ultimate segments linear, 5–20 × 1–2 mm, margins narrowly revolute, apex acute, apiculate. Upper leaves reduced, petioles wholly sheathing. Synflorescence thyrsoid; umbels 1.5–4(–6) cm across; peduncles elongate, slender; bracts 2–3, sometimes absent, broadly lanceolate, 1.5–3 × 0.5–1.5 mm, margin scarious; rays (2–)3–6(–9), ca. 10 mm, somewhat unequal; bracteoles 5–10, linear-lanceolate, 1.3–3 × ca. 1 mm, pubescent; umbellules 12–25-flowered, capitate, flowers sessile. Calyx teeth obsolete. Petals whitish or yellow, abaxially pubescent. Stylopodium conic. Fruit ovoid, dorsally compressed, 3–6 × 2–4 mm, densely or sparsely minutely pubescent; ribs filiform, prominent, margin ribs slightly winged; vittae 3 in each furrow, 6–10(–12) on commissure. Fl. and fr. Jul–Sep.

Among shrubs, dry stony and gravelly mountain slopes, screes, rock crevices; 700–1500 m. Xinjiang (Urumqi) [Kazakhstan, Kyrgyzstan].


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