新疆棱子芹 xin jiang leng zi qin

Aulacospermum pulchrum (Aitchison & Hemsley) K. H. Rechinger & Riedl; A. stylosum (C. B. Clarke) K. H. Rechinger & Riedl; Pleurospermum pulchrum Aitchison & Hemsley.

Plants (20–)60–150 cm, robust. Taproot thick. Stem branched, scaberulous or puberulent base with fibrous remnant sheaths. Basal petioles slender, 3–8 cm, sheaths very narrow; blades oblong-ovate or triangular-ovate, 3–8 × 2–6 cm, 2-pinnate or ternate-pinnate; ultimate segments lanceolate, ovate or obovate, 5–20 × 2–5 mm, base winged, margin serrate to pinnatifid, usually scaberulous. Leaves gradually reduced upwards. Umbels terminal and lateral, 8–15 cm across; peduncles 4–18 cm; bracts 5–8, lanceolate or oblong, 1–3 cm, like upper leaves, becoming reflexed; rays 15–35, 3–10 cm, about equal, thick, scaberulous; bracteoles 6–10, lanceolate or ovate-lanceolate, 5–12 mm, longer than flowers, reflexed, margin broad, white, scarious; umbellules 20–30-flowered; pedicels 7–12 mm, angled, scaberulous. Calyx teeth ovate, minute. Petals obovate, white or flushed pink, apex inflexed. Fruit oblong ovoid or ellipsoid, 4–6 × 2–4 mm; ribs all narrowly sinuate-winged; vittae 1 in each furrow, 2 on commissure. Fl. Jun–Aug, fr. Aug–Oct.

Open stony ground, streamsides; ca. 3800 m. NW Xinjiang [Afghanistan, NW India, Kashmir, Pakistan].