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Cyperaceae taxon details

Carex occidentalis L.H.Bailey

1676628 (urn:lsid:marinespecies.org:taxname:1676628)

accepted
Species
terrestrial
Bailey, L. H. (1889). Studies of the types of various species of the genus <i>Carex</i>. Notes on <i>Carex</i>.—XI. <em>Memoirs of the Torrey Botanical Club.</em> 1(1): 1-86., available online at https://www.biodiversitylibrary.org/page/31679539#page/7/mode/1up
page(s): 14 [details] 
Description Plants without conspicuous rhizomes. Culms 25–90 cm, 1.6–2 mm wide basally, 0.6–0.7 mm wide distally. Leaves: sheaths...  
Description Plants without conspicuous rhizomes. Culms 25–90 cm, 1.6–2 mm wide basally, 0.6–0.7 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2 mm, as long as wide; widest leaf blades 1.5–2.5(–3) mm wide. Inflorescences with 4–10 spikes, 1.5–3.5 cm × 6–10 mm; proximal internodes as long as to slightly longer than proximal spikes, rarely 2 times as long; proximal bracts to 3 cm; spikes with 3–10 ascending to spreading perigynia. Pistillate scales brown with green, 3-veined center, ovate, 3.4–4 × 1.6–2 mm, body wider than and as long as perigynium, apex acuminate to short-awned, awn less than 1 mm. Anthers 2.5 mm. Perigynia brown, sometimes with green margins, faces obscurely veined, 2.5–4.5 × 1.5–1.9 mm, base of body somewhat spongy, margins serrulate distally; beak 0.6–1.3 mm, apical teeth 0.2–0.3 mm. Stigmas straight, 0.07 mm wide. Achenes elliptic-circular, 1.9–2 × 1.5–1.6 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 14 1889 to Mem. Torrey Bot. Club 1: 14...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 14 1889 to Mem. Torrey Bot. Club 1: 14 (1889), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex occidentalis L.H.Bailey. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676628 on 2026-08-10
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
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Nomenclature

original description Bailey, L. H. (1889). Studies of the types of various species of the genus <i>Carex</i>. Notes on <i>Carex</i>.—XI. <em>Memoirs of the Torrey Botanical Club.</em> 1(1): 1-86., available online at https://www.biodiversitylibrary.org/page/31679539#page/7/mode/1up
page(s): 14 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Syntype (of Carex neomexicana Mack.) NY 11241., geounit New Mexico [details]
From editor or global species database
Description Plants without conspicuous rhizomes. Culms 25–90 cm, 1.6–2 mm wide basally, 0.6–0.7 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2 mm, as long as wide; widest leaf blades 1.5–2.5(–3) mm wide. Inflorescences with 4–10 spikes, 1.5–3.5 cm × 6–10 mm; proximal internodes as long as to slightly longer than proximal spikes, rarely 2 times as long; proximal bracts to 3 cm; spikes with 3–10 ascending to spreading perigynia. Pistillate scales brown with green, 3-veined center, ovate, 3.4–4 × 1.6–2 mm, body wider than and as long as perigynium, apex acuminate to short-awned, awn less than 1 mm. Anthers 2.5 mm. Perigynia brown, sometimes with green margins, faces obscurely veined, 2.5–4.5 × 1.5–1.9 mm, base of body somewhat spongy, margins serrulate distally; beak 0.6–1.3 mm, apical teeth 0.2–0.3 mm. Stigmas straight, 0.07 mm wide. Achenes elliptic-circular, 1.9–2 × 1.5–1.6 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 14 1889 to Mem. Torrey Bot. Club 1: 14 (1889), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
    Definitions

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