Laserpitium siler, common name laserwort, is a herbaceous perennial plant of the family Apiaceae.
Laserpitium siler can reach a height of about 30–100 centimetres (12–39 in). It is a robust perennial umbellifer with bipinnate, alternate leaves. Laserpitium siler produces compound umbels of white five-stellate flowers. This plant blooms from June to August.
This species can be found in central and southern Europe -Alpes, Balkan, Apennine Mountains and the Iberian Peninsula. It occurs in gorges and rocky slopes at an elevation of 800–2,250 metres (2,620–7,380 ft) above sea level.