Difference between revisions of "Luzula comosa var. laxa"

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'''Common name:''' Wood rush group
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* Scientific Name: ''Luzula comosa'' var. ''laxa''
[[File:LUCA_BenLegler_veg_2004.jpg|thumb|400px|By Ben Leger|]]
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* Family: Juncaceae
'''Abbreviation Code (Codon):''' LU spp
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* Common Names: Pacific woodrush
==Description==
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* Synonyms/Misapplications: ''Luzula intermedia, Luzula multiflora'' subsp. ''comosa''
Luzula spp have a spikelike, pan-like, or umbellate inflorescence. Perianth is greenish to brown or purplish-brown, and often scarious. They are generally shiny, have 6 stamens, their caps are one celled, 3 seeded and are generally attached by cottony fibers, sometimes with a caruncle. They are a "grasslike" perennial herb that has closed leaves that are flat blades, fringed with small hairs. <ref>Hitchcock and Cronquist "Flora of the Pacific Northwest"</ref> One native western "woodrush" species found in the south Puget Sound glacial outwash prairies is ''Luzula comosa''.
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* Codon: LUZCOM
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----
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[[File:LUZCOM1.jpg |thumb|Photo by Robert L. Carr, also featured on Main Page]]
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=== Taxonomy ===
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{{Taxobox
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| image =
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| image_caption = Photo by Robert L. Carr. Also featured on Main Page.
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| name = ''Luzula comosa'' var. ''laxa''
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| regnum = [[Plant]]ae
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| subregnum = Viridiplantae
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| phylum = Tracheophyta
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| subphylum= Spermatophytina
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| classis = Magnoliopsida
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| subclassis = Lilianae
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| ordo = Poales
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| familia = Juncaceae
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| genus = ''Luzula'' DC.
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| species = ''''' Luzula comosa''''' E. Mey
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| subspecies = '''''Luzula comosa'' var. ''laxa''''' Buchenau (not accepted)
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| synonyms = *''Luzula intermedia'' (Thuill.) A. Nelson
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*''Luzula multiflora'' ssp. ''comosa'' (E. Mey.) Hultén
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*''Luzula comosa'' var. ''congesta'' (Thuill.) S. Watson
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*''Luzula multiflora'' var. ''comosa'' (E. Mey.) H. St. John
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}}
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<ref>Integrated Taxonomic Information System. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=39339#null</ref>
  
==Bloom Period==
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===Description===
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Native tufted perennial, reaching 1-4 dm in height.
  
==Distribution==
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Leaves are grass-like, reddish to green, with long, fine hairs along leaf margin.
  
==Habitat==
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Inflorescence consists of 1 to 6 brownish glomerules (a condensed, headlike, cluster of flowers). The individual flowers consist of 6 membranous pallid, brownish tepals. ''Luzula comosa'' var. ''laxa'' generally has a more open, subumbellate inflorescence than ''Luzula comosa'' var. ''comosa'', which has a tighter capitate inflorescence.  
Common. Meadows, open woodlands, coniferous forests <ref>http://ucjeps.berkeley.edu/interchange/I_treat_indexes.html  Mon May 7 14:59:43 2012</ref>
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==Uses==
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Juncaceae family members are differentiated from grasses in that they typically feature round stems, without nodes. <ref name=":0">Bowcutt, F., & Hamman, Sarah. (2016). ''Vascular plants''
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of the South Sound prairies'' (First ed.). Olympia, Washington: The Evergreen''
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State College Press.</ref><ref name=":1">Hitchcock, C. L., Cronquist, A., Giblin, D., & Legler,
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B. et al. (2018). ''Flora of the Pacific Northwest: an illustrated manual''.
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Seattle: University of Washington Press.</ref>
  
==Propagation==
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===Bloom Period===
'''Seed''' Seed sample from:''' 2008
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April to July<ref name=":0" />
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===Distribution===
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BC to California, along both sides of Cascades, east to Alberta, Montana, Utah, and New Mexico.<ref name=":1" />
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===Habitat===
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Openings, rocky slopes, forest, and shores, coastal to montane.<ref name=":1" />
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=== Seed ===
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Seed sample from:''' 2008'''
  
 
'''Average Measurement:''' 1.5 x 0.9 x 0.9
 
'''Average Measurement:''' 1.5 x 0.9 x 0.9
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'''Longitudinal Cross Section:''' elliptical [[File:Luzula long.png]]
 
'''Longitudinal Cross Section:''' elliptical [[File:Luzula long.png]]
  
==Referenecs==
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=== Photo Gallery ===
 
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==Photo Gallery==
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<gallery>
 
<gallery>
File:LUCA_BenLegler_flw_2006 (2).jpg
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File:LUZCOM2.jpg| Photo by Robert L. Carr
File:LUCA_MarionJaricsh_veg2.jpg
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File:LUCA BenLegler flw 2006.jpg
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</gallery>
 
</gallery>
  
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===References===
  
  
  
 
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<references />
 
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<references/>
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Latest revision as of 22:43, 20 March 2021

  • Scientific Name: Luzula comosa var. laxa
  • Family: Juncaceae
  • Common Names: Pacific woodrush
  • Synonyms/Misapplications: Luzula intermedia, Luzula multiflora subsp. comosa
  • Codon: LUZCOM

Photo by Robert L. Carr, also featured on Main Page

Taxonomy

Luzula comosa var. laxa
Scientific classification
Kingdom: Plantae
Subkingdom: Viridiplantae
Phylum: Tracheophyta
Subphylum: Spermatophytina
Class: Magnoliopsida
Subclass: Lilianae
Order: Poales
Family: Juncaceae
Genus: Luzula DC.
Species: Luzula comosa E. Mey
Subspecies: Luzula comosa var. laxa Buchenau (not accepted)
Synonyms
  • Luzula intermedia (Thuill.) A. Nelson
  • Luzula multiflora ssp. comosa (E. Mey.) Hultén
  • Luzula comosa var. congesta (Thuill.) S. Watson
  • Luzula multiflora var. comosa (E. Mey.) H. St. John

[1]

Description

Native tufted perennial, reaching 1-4 dm in height.

Leaves are grass-like, reddish to green, with long, fine hairs along leaf margin.

Inflorescence consists of 1 to 6 brownish glomerules (a condensed, headlike, cluster of flowers). The individual flowers consist of 6 membranous pallid, brownish tepals. Luzula comosa var. laxa generally has a more open, subumbellate inflorescence than Luzula comosa var. comosa, which has a tighter capitate inflorescence.

Juncaceae family members are differentiated from grasses in that they typically feature round stems, without nodes. [2][3]

Bloom Period

April to July[2]

Distribution

BC to California, along both sides of Cascades, east to Alberta, Montana, Utah, and New Mexico.[3]

Habitat

Openings, rocky slopes, forest, and shores, coastal to montane.[3]

Seed

Seed sample from: 2008

Average Measurement: 1.5 x 0.9 x 0.9

Measurement Range: L: 1.2 – 1.8, W: 0.8 – 1, D:0.8 – 1

Features

Shape: Seeds have prominent white caruncle. Seed mostly round except for a slightly pointed tapering at hilum and opposite apex.

Color: Seed coat is white over a dark reddish brown seed body.

Surface: On one side of seed there is a cloudy white line that crosses from hilum to opposite apex. Seed is lustrous and marked with many fine longitudinal lines.

Latitudinal Cross Section: elliptical Luzula lat.png

Longitudinal Cross Section: elliptical Luzula long.png

Photo Gallery

References

  1. Integrated Taxonomic Information System. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=39339#null
  2. 2.0 2.1 Bowcutt, F., & Hamman, Sarah. (2016). Vascular plants of the South Sound prairies (First ed.). Olympia, Washington: The Evergreen State College Press.
  3. 3.0 3.1 3.2 Hitchcock, C. L., Cronquist, A., Giblin, D., & Legler, B. et al. (2018). Flora of the Pacific Northwest: an illustrated manual. Seattle: University of Washington Press.