Difference between revisions of "Ulmus crassifolia"

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|common_name=Cedar Elm
 
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'''''Ulmus crassifolia''''' <small>Nutt.</small>, the '''Texas Cedar Elm''' or simply '''Cedar Elm''', is a [[deciduous]] tree native to south central [[North America]], mainly in southern and eastern [[Texas]], eastern [[Oklahoma]], [[Arkansas]] and [[Louisiana]], with small populations in western [[Mississippi]], southwest [[Tennessee]] and northwestern [[Florida]] [http://www.efloras.org/object_page.aspx?object_id=7179&flora_id=1]; it also occurs in northeastern [[Mexico]] <ref name=Todzia>Todzia, C. A. & Panero, J. L. (2006). A new species of Ulmus (Ulmaceae) from southern Mexico and a synopsis of the species in Mexico. ''Brittonia'', Vol 50, (3): 346</ref> [http://www.jstor.org/stable/2807778?seq=1]. The tree typically grows well in flat river bottom areas referred to as Cedar Elm Flats.
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The Cedar Elm is a medium-sized to large [[deciduous]] [[tree]] growing to 24-27 m tall with a rounded crown. The [[leaf|leaves]] are small, 2.5 cm - 5 cm long by 1.3 cm - 2 cm broad, with an oblique base, and distinguish it from ''[[Ulmus serotina]]'' with which it readily hybridizes in the wild. Leaf fall is late in the year, often in early winter. The wind-pollinated [[apetalous]] [[perfect flower]]s are produced in the late summer or early fall; they are small and inconspicuous, with a reddish-purple color. The [[fruit]] is a small winged [[Samara (fruit)|samara]] 8 - 10 mm long, maturing quickly after the flowering in late fall [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233501326] [http://plants.usda.gov/java/profile?symbol=ulcr].
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Ulmus crassifolia, Nutt. Cedar Elm. Tree, attaining 80 ft., with spreading limbs and slender, often pendulous branches, often furnished when older with 2 opposite corky wings: lvs. short-petioled, ovate to ovate-oblong, usually very unequal at the base, obtuse or acute, doubly and obtusely, sometimes almost simply serrate, subcoriaceous, somewhat rough and lustrous above, pubescent beneath, 1-2 in. long: fls. in 3-5-fld. very short racemes; stamens 5-8, little exserted: fr. oval-elliptic, pubescent, notched, 1/3 in. long. Aug. Miss. to Ark. and Texas. —Tender N.
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Ulmus crassifolia, Nutt. Cedar Elm. Tree, attaining 80 ft., with spreading limbs and slender, often pendulous branches, often furnished when older with 2 opposite corky wings: lvs. short-petioled, ovate to ovate-oblong, usually very unequal at the base, obtuse or acute, doubly and obtusely, sometimes almost simply serrate, subcoriaceous, somewhat rough and lustrous above, pubescent beneath, 1-2 in. long: fls. in 3-5-fld. very short racemes; stamens 5-8, little exserted: fr. oval-elliptic, pubescent, notched, 1/3 in. long. Aug. Miss. to Ark. and Texas. S.S. 7:315. —Tender N.
 
 
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==Cultivation==
 
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===Pests and diseases===
 
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The tree is highly susceptible to [[Dutch elm disease]] and moderately damaged by Elm Leaf Beetle ''[[Xanthogaleruca luteola]]''.
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==Varieties==
  
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==Species==
 
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==References==
 
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*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
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<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
 
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<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
 
<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
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Latest revision as of 14:59, 5 May 2010


Ulmus crassifolia (USDA).jpg


Plant Characteristics
Habit   tree

Height: ⇕ 70 ft"ft" can not be assigned to a declared number type with value 70. to 100 ft"ft" can not be assigned to a declared number type with value 100.
Width: ⇔ 40 ft"ft" can not be assigned to a declared number type with value 40.
Lifespan: ⌛ perennial
Cultivation
Exposure: ☼ sun
USDA Zones: 7 to 10
Scientific Names

Ulmaceae >

Ulmus >

crassifolia >


Ulmus crassifolia Nutt., the Texas Cedar Elm or simply Cedar Elm, is a deciduous tree native to south central North America, mainly in southern and eastern Texas, eastern Oklahoma, Arkansas and Louisiana, with small populations in western Mississippi, southwest Tennessee and northwestern Florida [1]; it also occurs in northeastern Mexico [1] [2]. The tree typically grows well in flat river bottom areas referred to as Cedar Elm Flats.

The Cedar Elm is a medium-sized to large deciduous tree growing to 24-27 m tall with a rounded crown. The leaves are small, 2.5 cm - 5 cm long by 1.3 cm - 2 cm broad, with an oblique base, and distinguish it from Ulmus serotina with which it readily hybridizes in the wild. Leaf fall is late in the year, often in early winter. The wind-pollinated apetalous perfect flowers are produced in the late summer or early fall; they are small and inconspicuous, with a reddish-purple color. The fruit is a small winged samara 8 - 10 mm long, maturing quickly after the flowering in late fall [3] [4].


Read about Ulmus crassifolia in the Standard Cyclopedia of Horticulture 

Ulmus crassifolia, Nutt. Cedar Elm. Tree, attaining 80 ft., with spreading limbs and slender, often pendulous branches, often furnished when older with 2 opposite corky wings: lvs. short-petioled, ovate to ovate-oblong, usually very unequal at the base, obtuse or acute, doubly and obtusely, sometimes almost simply serrate, subcoriaceous, somewhat rough and lustrous above, pubescent beneath, 1-2 in. long: fls. in 3-5-fld. very short racemes; stamens 5-8, little exserted: fr. oval-elliptic, pubescent, notched, 1/3 in. long. Aug. Miss. to Ark. and Texas. —Tender N. CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

Propagation

Pests and diseases

The tree is highly susceptible to Dutch elm disease and moderately damaged by Elm Leaf Beetle Xanthogaleruca luteola.

Varieties

Gallery

  • photo 1

  • photo 2

  • photo 3

References

  1. ↑ Todzia, C. A. & Panero, J. L. (2006). A new species of Ulmus (Ulmaceae) from southern Mexico and a synopsis of the species in Mexico. Brittonia, Vol 50, (3): 346

External links


Retrieved from "http://gardenology.mywikis.net/w/index.php?title=Ulmus_crassifolia&oldid=127777"