Difference between revisions of "Luzula comosa var. laxa"

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[[File:LUCA_BenLegler_veg_2004.jpg|thumb|400px|By Ben Leger|]]
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* Latin Name: ''Luzula comosa'' var. ''laxa''
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* Family: Juncaceae
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* Common Names: Pacific woodrush
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* Synonyms/Misapplications: ''Luzula intermedia, Luzula multiflora'' subsp. ''comosa''
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* Codon: LUZCOM
  
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== Taxonomy ==
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{{Taxobox
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| image =
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| image_caption =
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| name = '''''Luzula comosa''''' var. '''''laxa'''''
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| regnum = [[Plant]]ae
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| subregnum = Tracheobionta
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| phylum = Spermatophyta
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| subphylum= Magnoliophyta
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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''''' Buch.
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}}
  
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==Description==
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Native tufted perennial, reaching 1-4 dm in height.
  
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Leaves are grass-like, reddish to green, with long, fine hairs along leaf margin.
  
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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.
  
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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>
  
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==Bloom Period==
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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'''
 
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===Seed===
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'''Seed sample from:''' 2008
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'''Average Measurement:''' 1.5 x 0.9 x 0.9
 
'''Average Measurement:''' 1.5 x 0.9 x 0.9
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'''Measurement Range:''' L: 1.2 – 1.8, W: 0.8 – 1, D:0.8 – 1
 
'''Measurement Range:''' L: 1.2 – 1.8, W: 0.8 – 1, D:0.8 – 1
  
====Features====
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'''Features'''
  
 
'''Shape:''' Seeds have prominent white caruncle. Seed mostly round except for a slightly pointed tapering at hilum and opposite apex.
 
'''Shape:''' Seeds have prominent white caruncle. Seed mostly round except for a slightly pointed tapering at hilum and opposite apex.
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'''Longitudinal Cross Section:''' elliptical [[File:Luzula long.png]]
 
'''Longitudinal Cross Section:''' elliptical [[File:Luzula long.png]]
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== Photo Gallery ==
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==Referenecs==
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<gallery>
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<references />
File:LUCA_BenLegler_flw_2006 (2).jpg
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File:LUCA_MarionJaricsh_veg2.jpg
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</gallery>
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Latest revision as of 18:44, 7 June 2020

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

Taxonomy

Luzula comosa var. laxa
Scientific classification
Kingdom: Plantae
Subkingdom: Tracheobionta
Phylum: Spermatophyta
Subphylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Lilianae
Order: Poales
Family: Juncaceae
Genus: Luzula DC.
Species: Luzula comosa E. Mey
Subspecies: Luzula comosa var. laxa Buch.

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. [1][2]

Bloom Period

April to July[1]

Distribution

BC to California, along both sides of Cascades, east to Alberta, Montana, Utah, and New Mexico.[2]

Habitat

Openings, rocky slopes, forest, and shores, coastal to montane.[2]

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

Referenecs

  1. 1.0 1.1 Bowcutt, F., & Hamman, Sarah. (2016). Vascular plants of the South Sound prairies (First ed.). Olympia, Washington: The Evergreen State College Press.
  2. 2.0 2.1 2.2 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.