Abstract Angelica archangelica L. seeds (fruits) were collected in three habitats in 2004 and 2005. Monoterpene hydrocarbons (59.3â82.9%) comprised the largest part of the seed oils. One hundred and five identified constituents made up 84.6â95.7% of the oils. The oils of ripe seeds were rich in β-phellandrene (33.6â63.4%). α-Pinene (4.2â15.8%) and sabinene (20.4%) were the second major constitutents in oils. Other main components of ripe seed oils were α-phellandrene, myrcene and germacrene D. The amounts of β-phellandrene decreased from 57.0â63.4% to 39.0â41.3% during the storage of the seeds for twelve months. The composition of the seed embryo oil differed from those of the ripe seeds. The dominant compounds were myrcene (21.8%), α-pinene (13.2%), sabinene (8.4%) and zingiberene (7.7%). The seed embryo oil contained about twice higher amount of sesquiterpene hydrocarbons. Only 5.2% of β-phellandrene was present in the seed embryo oil. Key Word Index: Angelica archangelica Apiaceaeseed embryoessential oil compositionmyrceneα-pinenesabinenezingiberene