Cnidium sinchianum K. T. Fu

This species is incompletely known, but differs from Selinum in the obsolete calyx teeth and the thick, slightly corky fruit ribs.

Plants perennial, 20–35 cm. Root coniform, slender. Stem erect, unbranched, glabrous. Lower leaves petiolate; blade triangular-ovate, 2–3-pinnate; ultimate segments linear, 4–15 × 0.5–1 mm. Umbels terminal, peduncle 4–5.5 cm; bracts caducous; rays 6–11, 10–17 mm; bracteoles 8–10, linear, exceeding pedicels, scabrous at margins; umbellules 12–16-flowered; pedicels 2–4 mm. Calyx teeth obsolete. Stylopodium low-conic; styles slightly recurved, ca. 1.2 mm. Fruit oblong-ovoid, ca. 4 mm. Fl. Jun–Sep, fr. Sep–Oct.

Shady moist places. Shaanxi (Xingjia Shan).