Seseli tortuosum L., it is a perennial, sometimes biennial herb, (10-) 30-100 cm tall, with usually thick rootstock with a fibrous collar, stems glabrous. terete with fine ridges. Basal leaves up to 2o x 10 cm (or more), 3-4-pinnate, ovate in outline, glabrous or finely scabrid; ultimate segments ovate, divided into linear lobes, 5-25 x 1-1.5 (-2) mm; petiole shorter than rachis; upper leaves sub sessile. Rays 5-15, up to 20 (-30) mm, puberulent, on inter side. Bracts 0 (-3); bracteoles 8-12, puberulent, with a membranous margin; umbellules 14-20-flowered. Petals yellowish-wite, pubcrulent on back; pedicels shorter than fruits. Fruits ovoid to ellipsoid, puberulent, 3-4 x 1.5-2 mm.
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