Difference between revisions of "Salix fragilis"

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__NOTOC__{{Plantbox
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| name = ''Salix fragilis''
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| common_names =    <!--- if multiple, list all, if none, leave blank -->
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| growth_habit =    <!--- tree, shrub, herbaceous, vine, etc -->
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| high =    <!--- 1m (3 ft) -->
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| wide =    <!--- 65cm (25 inches) -->
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| origin =    <!--- Mexico, S America, S Europe, garden, etc -->
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| poisonous =    <!--- indicate parts of plants which are known/thought to be poisonous -->
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| lifespan = perennial
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| exposure =    <!--- full sun, part-sun, semi-shade, shade, indoors, bright filtered (you may list more than 1) -->
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| water =    <!--- frequent, regular, moderate, drought tolerant, let dry then soak -->
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| features =    <!--- flowers, fragrance, fruit, naturalizes, invasive -->
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| hardiness =    <!--- frost sensitive, hardy, 5°C (40°F), etc -->
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| bloom =    <!--- seasons which the plant blooms, if it is grown for its flowers -->
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| usda_zones =    <!--- eg. 8-11 -->
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| sunset_zones =    <!--- eg. 8, 9, 12-24, not available -->
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| color = IndianRed
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| image = Upload.png  <!--- Freesia.jpg -->
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| image_width = 240px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
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| image_caption =    <!--- eg. Cultivated freesias -->
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| regnum = Plantae
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| divisio = Magnoliophyta
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| classis = Magnoliopsida
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| ordo = Malpighiales
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| familia = Salicaceae
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| genus = Salix
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| species = fragilis
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| subspecies =
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| cultivar =
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}}
 
{{Inc|
 
{{Inc|
 
Salix fragilis, Linn. (S. viridis, Fries. S. Russelliana, Smith). Brittle Willow. Fig. 3526. Tree, 50-60 ft. high, excurrent in habit and of very rapid growth: branches brown, obliquely ascending: buds medium size, pointed: lvs. large, lanceolate-acuminate, glabrous or slightly hairy when young, scarcely paler beneath, glandular serrate: aments appearing with the lvs. (the staminate tree rare in Amer.), seldom bearing good seed, slender; scales deciduous. Eu., N. Asia. Gn. 19, p. 517; 55, p. 89.—Frequently cult. and also growing spontaneously in many places. A company of promoters induced many American farmers to plant hedges of this willow some 50 years ago. Many of these occur now throughout the country, the trees being 40-50 ft. high. A stake cut from a tree and driven in the ground will soon establish itself and grow into a tree. Var. decipiens, Hoffm. Twigs yellow: buds black in winter: lvs. smaller and brighter green. Probably a hybrid with another species.
 
Salix fragilis, Linn. (S. viridis, Fries. S. Russelliana, Smith). Brittle Willow. Fig. 3526. Tree, 50-60 ft. high, excurrent in habit and of very rapid growth: branches brown, obliquely ascending: buds medium size, pointed: lvs. large, lanceolate-acuminate, glabrous or slightly hairy when young, scarcely paler beneath, glandular serrate: aments appearing with the lvs. (the staminate tree rare in Amer.), seldom bearing good seed, slender; scales deciduous. Eu., N. Asia. Gn. 19, p. 517; 55, p. 89.—Frequently cult. and also growing spontaneously in many places. A company of promoters induced many American farmers to plant hedges of this willow some 50 years ago. Many of these occur now throughout the country, the trees being 40-50 ft. high. A stake cut from a tree and driven in the ground will soon establish itself and grow into a tree. Var. decipiens, Hoffm. Twigs yellow: buds black in winter: lvs. smaller and brighter green. Probably a hybrid with another species.
 
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{{Taxobox
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==Cultivation==
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| color = lightgreen
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{{edit-cult}}<!--- Type cultivation info below this line, then delete this entire line -->
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| name = Crack Willow
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| status =  
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===Propagation===
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{{edit-prop}}<!--- Type propagation info below this line, then delete this entire line -->
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===Pests and diseases===
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{{edit-pests}}<!--- Type pest/disease info below this line, then delete this entire line -->
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==Species==
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<!--  This section should be renamed Cultivars if it appears on a page for a species (rather than genus), or perhaps Varieties if there is a mix of cultivars, species, hybrids, etc    -->
  
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secure
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==Gallery==
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| image = Salix fragilis 004.jpg
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{{photo-sources}}<!-- remove this line if there are already 3 or more photos in the gallery  -->
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| image_width = 240px
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| image_caption = Crack Willow
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<gallery>
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| regnum = [[Plant]]ae
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Image:Upload.png| photo 1
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| divisio = [[Flowering plant|Magnoliophyta]]
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Image:Upload.png| photo 2
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| classis = [[Dicotyledon|Magnoliopsida]]
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Image:Upload.png| photo 3
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| ordo = [[Malpighiales]]
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</gallery>
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| familia = [[Salicaceae]]
 
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| genus = ''[[Willow|Salix]]''
 
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| species = '''''S. fragilis'''''
 
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| binomial = ''Salix fragilis''
 
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| binomial_authority = [[Carolus Linnaeus|L.]]
 
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}}
 
  
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The '''Crack Willow''' (''Salix fragilis'') is a [[willow]] native to [[Europe]] and [[Asia]], and is reportedly invasive in North America. It is a medium-sized to large [[deciduous]] tree, which grows rapidly and can be up to 27 m tall. Its preferred habitat is beside rivers. The [[Leaf|leaves]] are bright green, 9-15 cm long and 1.5-3 cm wide, with a finely serrated margin. The [[plant sexuality|dioecious]] [[flower]]s are catkins, produced in early spring, and pollinated by bees.
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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  -->
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<!--- xxxxx  *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608  -->
  
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The name derives from the [[twig]]s which break off very easily and cleanly at the base with an audible crack. The broken twigs and branches take root readily, enabling the species to colonise new areas, particularly where the broken twigs fall into rivers and can be carried some distance downstream. It is particularly adept at colonising new riverside sandbanks formed after [[flood]]s.
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==External links==
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*{{wplink}}
  
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Its female flowers can have either one or two [[nectar]]ies.
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{{stub}}
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[[Category:Categorize]]
  
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{{Commons|Salix fragilis}}
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<!--  in order to add all the proper categories, go to http://www.plants.am/wiki/Plant_Categories and copy/paste the contents of the page here, and then follow the easy instructions!    -->
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{{wikispecies|Salix fragilis}}
 
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[[Category:Salicaceae|Willow, Crack]]
 

Revision as of 21:50, 30 April 2009


Upload.png


Plant Characteristics
Lifespan: ⌛ perennial
Cultivation
Scientific Names

Salicaceae >

Salix >

fragilis >



Read about Salix fragilis in the Standard Cyclopedia of Horticulture 

Salix fragilis, Linn. (S. viridis, Fries. S. Russelliana, Smith). Brittle Willow. Fig. 3526. Tree, 50-60 ft. high, excurrent in habit and of very rapid growth: branches brown, obliquely ascending: buds medium size, pointed: lvs. large, lanceolate-acuminate, glabrous or slightly hairy when young, scarcely paler beneath, glandular serrate: aments appearing with the lvs. (the staminate tree rare in Amer.), seldom bearing good seed, slender; scales deciduous. Eu., N. Asia. Gn. 19, p. 517; 55, p. 89.—Frequently cult. and also growing spontaneously in many places. A company of promoters induced many American farmers to plant hedges of this willow some 50 years ago. Many of these occur now throughout the country, the trees being 40-50 ft. high. A stake cut from a tree and driven in the ground will soon establish itself and grow into a tree. Var. decipiens, Hoffm. Twigs yellow: buds black in winter: lvs. smaller and brighter green. Probably a hybrid with another species.


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

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Propagation

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Pests and diseases

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Species

Gallery

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  • photo 2

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References

External links


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