短柱茴芹 duan zhu hui qin

Pimpinella nakaiana Kitagawa; Spuriopimpinella brachystyla (Handel-Mazzetti) Kitagawa.

Plants perennial, 30–80 cm, puberulent. Root fusiform, 4–8 × 0.3–0.6 cm. Stem 2–4-branched. Basal and lower petioles 4–15 cm; blade 2-ternate or ternate-2-pinnate; ultimate segments ovate or broad-ovate, 2–5 × 1.5–3 cm, abaxially glaucous, pubescent, margins serrate. Upper leaves 2-ternate or pinnate; ultimate segments oblong-ovate or lanceolate. Umbels 3–4 cm across; bracts absent, occasionally 1, linear-lanceolate, 3–5 mm; rays 4–6(–8), 1.5–2.5 cm, extremely unequal; bracteoles 2–4, linear, 0.5–3 mm, ca. equal to or shorter than pedicels; umbellules 5–7 mm across, 5–10-flowered; pedicels 1–3 mm. Calyx teeth obsolete. Petals white, broad-ovate, apex with incurved lobule. Stylopodium conic; styles ca. equal to stylopodium. Fruit ovoid, ca. 2 × 1.5 mm, base cordate, surface glabrous; vittae 3–4 in each furrow, 4–6 on commissure. Seed face plane. Fl. Jun–Jul, fr. Aug–Sep.

Moist valley sides, grassy slopes, streamsides; 500–2000 m. Gansu, Hebei, Nei Mongol, Shanxi.