Berberidaceae FAMILY

Mahonia japonica

Edibility

3/5

Medicinal

2/5

Safety & Hazards

All parts of the plant contain the alkaloid berberine - this is most concentrated in the roots, stems and inner bark, and least concentrated in the fruits. In small quantities berberine has a range of effective medicinal applications but, in excess, can cause vomiting, lowered blood pressure, reduced heart rate, lethargy, and other ill-effects. The fruit of most, if not all, members of this genus are more or less edible and can be eaten in quantity since the levels of berberine in the fruit are very low.

Botanical Description

Mahonia japonica is an evergreen shrub with stiff, stout, sparsely branched stems; it can grow around 100cm tall[ 266 Title Flora of China Publication Author Website http://flora.huh.harvard.edu/china/ Publisher Missouri Botanical Garden Press; St. Louis. Year 1994 ISBN Description An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available. ]. The plant is harvested from the wild for local use as a medicine. This species is cultivated extensively as an ornamental in Japan and sporadically also in the warmer parts of Europe and the United States[ 266 Title Flora of China Publication Author Website http://flora.huh.harvard.edu/china/ Publisher Missouri Botanical Garden Press; St. Louis. Year 1994 ISBN Description An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available. ].

Habitat & Origin

Origintemperate

Native RangeE. Asia - southern China, Taiwan

HabitatDamp woodlands in upland areas[ 147 Title A Barefoot Doctors Manual. Publication Author ? Publisher Running Press; Philadelphica. Year 1977 ISBN 0-914294-92-X Description A very readable herbal from China, combining some modern methods with traditional chinese methods. , 200 Title The New RHS Dictionary of Gardening. 1992. Publication Author Huxley. A. Publisher MacMillan Press Year 1992 ISBN 0-333-47494-5 Description Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed. ]. Forests, thickets; at elevations from 800 - 3,400 metres[ 266 Title Flora of China Publication Author Website http://flora.huh.harvard.edu/china/ Publisher Missouri Botanical Garden Press; St. Louis. Year 1994 ISBN Description An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available. ]. Not found in a truly wild situation, this species is possibly only a cultigen.