细颈东俄芹 xi jing dong e qin

Plants 15–30 cm. Root brown, fusiform or napiform, 1–2 × 0.4–0.5 cm. Stem branched above. Lower petioles long; blades triangular, 3–4.5 cm, 3-ternate/pinnate; pinnae short petiolulate; ultimate segments obovate or oblanceolate, 1–2 × 1–1.2 mm, sometimes 2–3-lobed, apex acute. Umbels ca. 5 cm across; peduncles 5–7 cm; bracts and bracteoles absent; rays 7–9, 1.8–2.7 cm; umbellules 9–10-flowered, ca. 1 cm across; pedicels 2–5 mm. Calyx teeth obsolete. Petals obovate, white, base clawed, apex rounded, slightly radiant, up to 1.5 mm. Mature fruit not known. Fl. Jul–Aug.

Open slopes; 2800–3800 m. S Gansu (Qin Ling).

This poorly known species is recorded only from a few collections.