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The Seacoast angelica (Coelopleurum gmelinii) belongs to Apiaceae (the Carrot family). It is a perennial herb that is distributed to Aomori Prefecture in Honshu and Hokkaido in Japan, as well as the Kuril Islands, Sakhalin, the Amur region, the Kamchatka Peninsula, and Alaska. It grows in coastal and mountainous grasslands and reaches a height of 1 to 1.5 m. The stem is erect and hollow, branching at the top. The leaves are 1 to 2 times bipinnate compound, with ovate to broadly ovate, round leaflets. The leaflets are biserrate and the terminal leaflet is sometimes 3-cleft or deeply parted. The leaves are somewhat hard and glossy. The base of the petiole is sac-like and swollen. From June to August, compound umbels appear at the top of the stem, blooming with many small white flowers. Below the small inflorescences are broad linear involucel segments.
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