Siler montanum

Siler montanum, now generally placed in the genus Laserpitium, is a stout herbaceous perennial of the carrot family growing 50-150 cm tall from a thick aromatic taproot. The robust, ribbed, glabrous stems are usually solitary and branched only above. Leaves are large, two- to three-pinnate, with ovate to lanceolate, entire to coarsely toothed glaucous leaflets 2-5 cm long; the lower leaves are long-petiolate while the upper are reduced and sheathing. Compound umbels are broad and flat-topped, 8-15 cm across, with 20-40 unequal rays bearing small whitish flowers; bracts and bracteoles are numerous, linear-lanceolate, and reflexed. Fruits are oblong-ovoid dry schizocarps 8-12 mm long with four prominent membranous wings on the secondary ridges. The plant grows on sunny, calcareous mountain slopes and open woodlands across central and southern Europe, flowering June to August.