Phellodendron amurense
English: Cork-tree.
Chinese: Pinyin; Huáng bǎi; Huáng bò.
Russian: Barkhat amurskiy.
Region: east and northeast Asia, Russia, China, Korea, Japan; invasive in New England.
Habitat: resistant to drought and insects; variety of soils.
Content: berberine, antibacterial, anti-fungal; Jatrorrhizine, anti-mutagenic; Phellodendrine, immune suppressant; Palmatine, vasodilator.
Use: medicinal, one of the 50 fundamental herbs in traditional Chinese medicine; ornamental, in spring yellow flowers, in summer foliage and shade, in fall the leaves turn bright yellow; bark fort yellow dye.
Botany
Tree.
Stem: bark thick, corky.
Leaves: leathery, pinnate.
Flowers: yellow, clumped.
Fruit: black drupes.
Dispersion: by birds, other wildlife.