Peucedanum officinale, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 361

1. P. officinale L. , Sp. Pl. 245 (1753) .

Glabrous perennial 60- 200 cm. Stock often c. 5 cm in diameter, with abundant fibres. Stems terete or weakly angled, solid, branched above. Lower leaves 30-60 cm, 2- to 6-ternate; lobes 40- 150 x (0-5—)1—3 mm, linear, narrowed at both ends, flat or with margins slightly recurved, with prominent midrib and weaker marginal veins. Rays 10-40. Umbels nodding in bud, later erect. Bracts 0-3, usually caducous; bracteoles several, setaceous. Petals yellow. Fruit 5-10 mm, narrowly elliptical to oblong-obovate, as long as pedicels; wing c. i as wide as mericarp. 2/z = 66. Usually in grassland. • C. & S. Europe, extending north-westwards to S.E. England. Al Au Br Bu Cz Ga Ge?Gr Hs Hu It Ju Lu Rm.