Ferula fukanensis K. M. Shen, Plants 0.5–1.5 m, strongly onion-scented. Stem solitary, stout, subglabrous, paniculate-branched, lower branches alternate, upper branches verticillate. Leaf blade ovate in outline, ternate-2-pinnatisect; ultimate segments oblong, proximally parted, distally lobed or toothed, ca. 20 mm, adaxially glabrous, abaxially puberulent, base decurrent, irregular crenate. Umbels 6–10 cm across; terminal peduncle 3–5 cm, lateral peduncles 6–15 cm, exceeding terminal; bracts absent; rays 5–18(–31), unequal; bracteoles lanceolate, deciduous; umbellules 7–21-flowered. Five new sesquiterpene phenylpropanoid derivatives, fukanedone A (1), fukanedone B (2), fukanedone C (3), fukanedone D (4), and fukanedone E (5), and a novel phenyl-oxo-acetate ester, fukaneketoester A (6), were isolated from a 80% aqueous methanol extract of the roots of Ferula fukanensis.