Chiba University Matsudo/Kashiwa Campus Plant Database

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Details of Genus: Fraxinus Tourn. ex L. (1753)

ID: 21

Genus ja: トネリコ

Genus en: Ash

# spp.: 58 (from genus_families table) | 44 (from names table)

Accepted: Accepted

Family: Oleaceae

Family ja: モクセイ

Infra familial classification:

Citation:
Data sourceKind of informationNote
Kew Gardens (2017) Plants of the world online (POWO). Accessed on 04 Jan 2026Scientific name & others Show this Data source
邑田・米倉 (2013) 維管束植物分類表Japanese common name Show this Data source

Distribution en: Temp. Eurasia to Central & S. Malesia, N. & Central America, Cuba

Description en: Genus of about 65 species of deciduous, rarely evergreen trees usually found in woodland, mainly in Europe, Asia, and North America. The leaves are opposite and pinnate, light to dark green, and 5-50cm (2-20in) long. The flowers are borne in terminal or axillary panicles or racemes, from spring to early summer. Ashes are grown for their habit and foliage. Most have inconspicuous, petalless flowers, although some species, including F. ornus and F. sieboldiana, are grown for their ornamental flowers. F. americana; F. pennsylvanica and F. uhdei usually produce male and female flowers on separate plants; both are needed to produce the single-seeded, winged fruits. Ashes are excellent specimen trees for woodland or coastal gardens. Grow non-fruiting cultivars in areas with long periods of over 24°C (75°F), where self-sown seedlings can cause problems. Contact with lichens on the bark may aggravate skin allergies.

Hardiness en: Fully hardy to frost hardy.

Cultivation en:

Propagation en: Stratify seed over winter, or chill for 2-3 months in a refrigerator before sowing. Sow seed in autumn or spring in containers in an open frame. Graft cultivars in spring on to seedling stock of the same species.

Pests en: Generally trouble free, although susceptible to a range of pests and diseases in the USA.

Description ja:

The essential 1000 genera certification Genus Fraxinus (フラクシヌス)

2019 edition

C Level
Family モクセイ
トネリコ属

2003 edition

A Level
Family モクセイ
木本I・被子植物
トネリコ

1986 edition

B Level
Family モクセイ
木本植物
トネリコ

Comment: N. temperate

Comment ja: トネリコ

Type species: Fraxinus excelsior L. (1753) Accepted

Phylogenetic definition:

Update information: Created: 2007-12-06 12:51; Updated: 2026-03-03 21:58 by hkokubun@mac.com

Family:

System Accepted? Botanical name Japanese name Infra-familial classification # species
APG4 Accepted Oleaceae モクセイ科 58 Show
PB2 Oleaceae モクセイ科 Show
PB3 Oleaceae モクセイ科 Show