Difference between revisions of "Fraxinus nigra"
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'''''Fraxinus nigra''''' ('''Black Ash''') is a species of ''[[Fraxinus]]'' (ash) native to much of eastern [[Canada]] and the northeastern [[United States]], from western [[Newfoundland (island)|Newfoundland]] west to southeastern [[Manitoba]], and south to [[Illinois]] and northern [[Virginia]].<ref name=grin>Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?301 ''Fraxinus nigra'']</ref> | '''''Fraxinus nigra''''' ('''Black Ash''') is a species of ''[[Fraxinus]]'' (ash) native to much of eastern [[Canada]] and the northeastern [[United States]], from western [[Newfoundland (island)|Newfoundland]] west to southeastern [[Manitoba]], and south to [[Illinois]] and northern [[Virginia]].<ref name=grin>Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?301 ''Fraxinus nigra'']</ref> | ||
| − | It is a medium-sized [[deciduous]] [[tree]] reaching 15–20 m (exceptionally 26 m) tall with a trunk up to | + | It is a medium-sized [[deciduous]] [[tree]] reaching 15–20 m (exceptionally 26 m) tall with a trunk up to 60 cm (exceptionally 160 cm) diameter. The [[bark]] is grey, thick and corky even on young trees, becoming scaly and fissured with age. The winter buds are dark brown to blackish, with a velvety texture. The [[leaf|leaves]] are opposite, pinnate, with 7–13 (most often 9) leaflets; each leaf is 20–45 cm long, the leaflets 7–16 cm long and 2.5–5 cm broad, with a finely toothed margin. The leaflets are sessile, directly attached to the rachis without a [[petiole (botany)|petiolule]]. The [[flower]]s are produced in spring shortly before the new leaves, in loose [[panicle]]s; they are inconspicuous with no petals, and are wind-pollinated. The [[fruit]] is a [[Samara (fruit)|samara]] 2.5–4.5 cm long comprising a single [[seed]] 2 cm long with an elongated apical wing 1.5–2 cm long and 6–8 mm broad.<ref name=nb>New Brunswick tree and shrub: [http://scf.rncan.gc.ca/subsite/mx-212/blackash ''Fraxinus nigra'']</ref><ref name=vplants>Virtual Herbarium of the Chicago Region: [http://www.vplants.org/plants/species/species.jsp?gid=17018 ''Fraxinus nigra'']</ref><ref name=usfs>USDA Forest Service Silvics Manual: [http://www.na.fs.fed.us/spfo/pubs/silvics_manual/volume_2/fraxinus/nigra.htm ''Fraxinus nigra'']</ref> |
It commonly occurs in [[swamp]]s, often with the closely related [[Fraxinus pennsylvanica|Green Ash]]. The fall foliage is yellow. Black Ash is one of the first trees to lose its leaves in the fall. | It commonly occurs in [[swamp]]s, often with the closely related [[Fraxinus pennsylvanica|Green Ash]]. The fall foliage is yellow. Black Ash is one of the first trees to lose its leaves in the fall. | ||
Latest revision as of 02:34, 5 August 2010
| Habit | tree
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| Height: | ⇕ | 50 ft"ft" can not be assigned to a declared number type with value 50. |
| Width: | ⇔ | 25 ft"ft" can not be assigned to a declared number type with value 25. |
| Lifespan: | ⌛ | perennial |
| Exposure: | ☼ | sun |
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| USDA Zones: | 7 to 10 |
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Oleaceae > |
Fraxinus > |
nigra > |
Marshall > |
Fraxinus nigra (Black Ash) is a species of Fraxinus (ash) native to much of eastern Canada and the northeastern United States, from western Newfoundland west to southeastern Manitoba, and south to Illinois and northern Virginia.[1]
It is a medium-sized deciduous tree reaching 15–20 m (exceptionally 26 m) tall with a trunk up to 60 cm (exceptionally 160 cm) diameter. The bark is grey, thick and corky even on young trees, becoming scaly and fissured with age. The winter buds are dark brown to blackish, with a velvety texture. The leaves are opposite, pinnate, with 7–13 (most often 9) leaflets; each leaf is 20–45 cm long, the leaflets 7–16 cm long and 2.5–5 cm broad, with a finely toothed margin. The leaflets are sessile, directly attached to the rachis without a petiolule. The flowers are produced in spring shortly before the new leaves, in loose panicles; they are inconspicuous with no petals, and are wind-pollinated. The fruit is a samara 2.5–4.5 cm long comprising a single seed 2 cm long with an elongated apical wing 1.5–2 cm long and 6–8 mm broad.[2][3][4]
It commonly occurs in swamps, often with the closely related Green Ash. The fall foliage is yellow. Black Ash is one of the first trees to lose its leaves in the fall.
Read about Fraxinus nigra in the Standard Cyclopedia of Horticulture
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Fraxinus nigra, Marsh. (F. sambucifolia, Lam.). Black Ash. Tree, to 80 ft.: lfts. 9-11, sessile, oblong-lanceolate, rounded at the base, acuminate, sharply serrate, green on both sides, dark above, 3-6 in. long: anthers broadly oblong: fr. narrow-oblong, with dccurrent wing. From Canada to Va., west to Mo. CH
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Fraxinus nigra. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Fraxinus nigra QR Code (Size 50, 100, 200, 500)
- ↑ Germplasm Resources Information Network: Fraxinus nigra
- ↑ New Brunswick tree and shrub: Fraxinus nigra
- ↑ Virtual Herbarium of the Chicago Region: Fraxinus nigra
- ↑ USDA Forest Service Silvics Manual: Fraxinus nigra
