Botanical Name: Alnus japonica
Habitat : Alnus japonica is native to Japan.Japan, Korea, Manchuria. It is best grown in medium to wet soils in full sun to part shade. Also tolerates dry, infertile soils. Best in cool climates
Alnus japonica is a deciduous Tree growing typically to 40-60′ (less frequently to 80′) at a fast rate. Narrow, acuminate, serrulate, ovate to elliptic, dark green leaves (to 5″ long) are wedge-shaped at the base and light green underneath. No appreciable fall color. Flowers are monoecious. Long, pendant, yellow-brown male catkins appear in clusters. Short erect female catkins are followed by ellipsoidal fruiting cones (3/4″ to 1 inch long) composed of winged seeds. It is in flower from Feb to March. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Wind.It can fix Nitrogen.
Suitable for: medium (loamy) and heavy (clay) soils and can grow in heavy clay and nutritionally poor soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry moist or wet soil. The plant can tolerates strong winds but not maritime exposure.
Various species of alder, including this species, seem to contain antitumour compounds……click to see more
Other Uses : Charcoal; Dye; Wood.
A dye is obtained from the bark. Wood – close grained. Used for turnery, charcoal.
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