Herbs & Plants

Fraxinus longicuspis

Botanical Name: Fraxinus longicuspis
Family: Oleaceae
Genus: Fraxinus
Kingdom: Plantae
Order: Lamiales

Synonyms : Fraxinus pubinervis. Blume.

Habitat: RFraxinus longicuspis is native to east Asia – central and southern Japan. It grows in deciduous forests in mountains at elevations of 100 – 1100 metres, C. and S. Japan.

Fraxinus longicuspis is a deciduous Tree growing to 70 ft high; buds rusty tomentose; shoots quadrangular, clad with brown, crisped hairs when young.The leaves are opposite (rarely in whorls of three), and mostly pinnately compound, though simple in a few species. Leaves with two or three pairs of lateral leaflets, which are distinctly stalked and up to 4 in. long and 1-1/4 in. wide.
It is in flower from April to May. The species is hermaphrodite (has both male and female organs) and is pollinated by Wind. The fruits on ash trees are samaras, similar to the winged seeds of maples, and they are usually grouped in clusters on the stem.The seeds, popularly known as “keys” or “helicopter seeds”, are a type of fruit known as a samara.


Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil. The plant can tolerates strong winds but not maritime exposure.
It can tolerate atmospheric pollution.

The seed is best harvested green – as soon as it is fully developed but before it has fully dried on the tree – and can then be sown immediately in a cold frame. It usually germinates in the spring. Stored seed requires a period of cold stratification and is best sown as soon as possible in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in a cold frame for their first winter. Plant them out into their permanent positions or a nursery bed in late spring or early summer of the following year. If you have sufficient seed then it is possible to sow it directly into an outdoor seedbed, preferably in the autumn. Grow the seedlings on in the seedbed for 2 years before transplanting either to their permanent positions or to nursery beds.

Medicinal Uses: Its tremendous range of pharmacotherapeutic properties has been well documented including anticancer, anti-inflammatory, antioxidant, antimicrobial, and neuroprotective. In addition, its bioactive phytochemicals and secondary metabolites can be effectively used in cosmetic industry and as a competent antiaging agent.

Other Uses: A bluish indelible dye is produced by steeping the bark in water.

Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.


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