Fraxinus americana L.

American ash (en), Frêne d'amérique (fr), Frêne blanc d'Amérique (fr)

Species

Angiosperms > Lamiales > Oleaceae > Fraxinus

Characteristics

Tree to 40 m; bark becoming rather finely and closely reticulate-ridged; lfls 5–9, usually 7, oblong to ovate or obovate, usually abruptly acuminate, crenulate to sometimes entire, paler and papillose beneath; petiolules mostly wingless; twigs and lvs mostly glabrous; terminal bud generally blunt, wider than high; old lf-scars commonly with a concave upper margin; anthers linear to linear-oblong, apiculate; fr linear to oblanceolate, 3–5 cm, the wing extending a third of the length of the terete body, the free part, above the body, longer than the body itself; subtending cal 1–1.5(–2) mm, seldom cleft on one side only; 2n=46, 92, 138. A valuable timber tree of rich, moist (not wet) woods; N.S. to Minn., s. to Fla. and Tex. (F. biltmoreana, a ± pubescent, chiefly southern form, perhaps reflecting hybridization with no. 2 [Fraxinus pennsylvanica Marshall])
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A tree that loses its leaves. It grows 30 m tall. The bark is grey and furrowed. The young twigs can be grey green. The leaves are 20-30 cm long and compound. They have leaflets along the stalk. There are 5-9 leaflets. The leaflets are sword shaped and 6-13 cm long. They can have teeth along the edge. The leaves are dark green and paler underneath. Male and female flowers are on separate plants. The fruit have one wing and are flat.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality dioecy
Pollination anemogamy
Spread anemochory
Mature width (meter) 8.5
Mature height (meter) 25.0 - 27.4
Root system -
Rooting depth (meter) 1.4
Root diameter (meter) 0.6
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Rich upland to lowland woods. Usually found in association with other hardwood trees in well-drained soils on slopes; at elevations up to 1,050 metres.
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A temperate plant. In XTBG Yunnan. Arboretum Tasmania.
Light 6-8
Soil humidity 4-7
Soil texture 2-5
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 5-8

Usage

The inner bark is eaten after scraping down in long fluffy layers and cooking.
Uses dye environmental use fiber material medicinal timber wood
Edible barks
Therapeutic use Abortifacient (bark), Gastrointestinal Aid (bark), Gynecological Aid (bark), Cathartic (bark), Emetic (bark), Liver Aid (bark), Dermatological Aid (bark), Hunting Medicine (bark), Laxative (bark), Reproductive Aid (bark), Venereal Aid (bark), Unspecified (bark), Snake Bite Remedy (flower), Gynecological Aid (leaf), Reproductive Aid (root), Snake Bite Remedy (root), Unspecified (root), Ear Medicine (sap), Abortifacient (unspecified), Blood Medicine (unspecified), Dermatological Aid (unspecified), Ear Medicine (unspecified), Veterinary Aid (unspecified), Apertif (unspecified), Aphrodisiac (unspecified), Astringent (unspecified), Cancer (unspecified), Diuretic (unspecified), Medicine (unspecified), Poultice (unspecified), Puerperium (unspecified), Sudorific (unspecified), Bite(Snake) (unspecified), Sore (unspecified), Tonic (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by graftings or seedlings.
Mode graftings seedlings
Germination duration (days) -
Germination temperacture (C°) 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -27
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Fraxinus americana habit picture by Josh M (cc-by-sa)
Fraxinus americana habit picture by Eli Small (cc-by-sa)

Leaf

Fraxinus americana leaf picture by Michael Marchand (cc-by-sa)
Fraxinus americana leaf picture by Страхил Иванов (cc-by-sa)
Fraxinus americana leaf picture by Garrett La Valley (cc-by-sa)

Flower

Fraxinus americana flower picture by Joshua Kuykendall (cc-by-sa)
Fraxinus americana flower picture by Danilo Diedrichs (cc-by-sa)

Fruit

Fraxinus americana fruit picture by Isabel Goldberg (cc-by-sa)
Fraxinus americana fruit picture by Wendy (cc-by-sa)
Fraxinus americana fruit picture by Joshua Kuykendall (cc-by-sa)

Distribution

Fraxinus americana world distribution map, present in Åland Islands, Bulgaria, Canada, Colombia, Spain, France, Micronesia (Federated States of), Georgia, Malaysia, Nicaragua, Korea (Democratic People's Republic of), and United States of America

Conservation status

Fraxinus americana threat status: Critically Endangered

Identifiers

LSID urn:lsid:ipni.org:names:105770-2
WFO ID wfo-0000832243
COL ID 6JN3T
BDTFX ID 75835
INPN ID 98909
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Fraxinus biltmoreana Fraxinus canadensis Fraxinus carolinensis Fraxinus epiptera Leptalix glauca Ornus americana Ornanthes americana Aplilia macrophyla Calycomelia epiptera Calycomelia juglandifolia Calycomelia pistaciifolia Calycomelia viridis Fraxinoides alba Fraxinus acuminata Fraxinus alba Fraxinus americana Leptalix epiptera Leptalix juglandifolia Leptalix grandifolia Leptalix alba Leptalix viridis Leptalix acuminata Calycomelia acuminata Calycomelia alba Calycomelia americana Calycomelia biltmoreana Fraxinus americana f. iodocarpa Fraxinus americana f. lasiophylla Fraxinus curtissii Fraxinus glauca Fraxinus grandifolia Fraxinus macrophylla Fraxinus pistaciifolia Fraxinus villosa Fraxinus viridis Fraxinus americana f. americana Fraxinus juglandifolia Fraxinus novae-angliae Fraxinus pennsylvanica subsp. novae-angliae Fraxinus americana var. acuminata Fraxinus americana var. alba Fraxinus americana var. ascidiata Fraxinus americana var. biltmoreana Fraxinus americana subsp. biltmoreana Fraxinus americana var. crassifolia Fraxinus americana var. curtissii Fraxinus americana var. epiptera Fraxinus americana var. glauca Fraxinus americana var. latifolia Fraxinus americana var. longifolia Fraxinus americana var. macrophylla Fraxinus americana var. microcarpa Fraxinus americana subsp. novae-angliae Fraxinus americana var. subcoriacea Fraxinus caroliniana var. latifolia Fraxinus discolor var. juglandifolia Fraxinus juglandifolia var. subserrata Fraxinus nigra var. juglandifolia Fraxinus pubescens var. latifolia Fraxinus pubescens var. longifolia Fraxinus americana f. acuminata Fraxinus americana f. ascidiata Fraxinus americana f. barrii Fraxinus americana var. americana Fraxinus americana var. acuminata Fraxinus americana var. juglandifolia Fraxinus americana subsp. typicum Fraxinus discolor