Stout, fleshy biennial or short-lived perennial with faint aniseed odour. Stems sparsely puberulent, hollow, grooved, striate, up to 60-(100) cm high. Basal lvs glabrous, 2-3-pinnate, petiolate; ultimate segments ovate to elliptic or lanceolate, serrate, sometimes lobed or pinnatisect, c. 2-7-(15) cm long, ± sessile, dark glossy green and recurved when fresh; stem lvs similar to basal, but 1-3-pinnate and shortly petiolate. Umbels (5)-10-20 cm diam., flat-topped; rays puberulent, numerous, stout; bracts 5-8, usually linear, sometimes fewer and broader; bracteoles numerous, lanceolate. Fls numerous, greenish white, 1-3 mm diam. Fr. glabrous, ovate-oblong, 8-12 mm long, brown with lighter, spongy lateral wings.
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