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Cyperaceae taxon details

Calliscirpus brachythrix C.N.Gilmour, J.R.Starr & Naczi

To Royal Botanic Gardens, Kew (Calliscirpus brachythrix K001057526 type 1)
To Royal Botanic Gardens, Kew (Calliscirpus brachythrix K001057526 type 1)

1680374  (urn:lsid:marinespecies.org:taxname:1680374)

  1. Biota
  2. Plantae (Kingdom)
  3. Viridiplantae (Subkingdom)
  4. Streptophyta (Infrakingdom)
  5. Tracheophyta (Phylum (Division))
  6. Spermatophytina (Subphylum (Subdivision))
  7. Magnoliopsida (Class)
  8. Lilianae (Superorder)
  9. Poales (Order)
  10. Cyperaceae (Family)
  11. Calliscirpeae (Tribe)
  12. Calliscirpus (Genus)
  13. Calliscirpus brachythrix (Species)
accepted
Species
terrestrial
Gilmour, C. N.; Starr, J. R.; Naczi, R. F. C. (2013). Calliscirpus, a new genus for two narrow endemics of the California Floristic Province, C. criniger and C. brachythrix sp. nov. (Cyperaceae). Kew Bulletin, 68(1): 85-105., available online at https://doi.org/10.1007/s12225-012-9420-2 [details] 
Holotype  CMN CAN 10091211 (Barcode), geounit California  
Holotype CMN CAN 10091211 (Barcode), geounit California [details]
Description Herb cespitose, short-rhizomatous, perennial. Culms 19 – 85 cm x 1.1 – 1.9 mm, prominently striate, occasionally...  
Description Herb cespitose, short-rhizomatous, perennial. Culms 19 – 85 cm x 1.1 – 1.9 mm, prominently striate, occasionally scabridulous near the apex. Leaves 3 – 6, basal and cauline, striate, 10 – 85 cm x 1 – 5 mm, distal leaf longer than sheath; leaf sheaths green or light brown at base, filamentose, dry and persistent. Ligule fimbriate with hairs 0.05 – 0.2 mm. Inflorescences capitate; bracts 2 – 5, sheathless, scale-like, 0.35 – 2 cm, rarely green and large, sometimes mucronate; Spikelets 5 - 30 or more, oblong-lanceoloid, 5 - 14 mm in flower and fruit, in a dense ovoid to hemispheric head of 1 or more inconspicuous branches; floral scales brown, with pale green or brown, sometimes red-spotted, 1 – 3-ribbed centre, ovate-oblong, 1.2 – 5.7 x 0.6 – 1.3 mm, apex acute; perianth bristles 6 (–12), 4 – 10 mm long, antrorsely barbed, elongate, straight; barbs thin, short, sparse; anthers 1.2 – 2 mm long; style deciduous, linear, 3-fid. Achenes 1.3 – 3 x 0.6 – 1.1 mm, dark brown, usually dull, smooth, beak short, trigonous, oblong; embryo Carex-type (Figure 8). [details]

Distribution USA: California. Alpine, El Dorado, Fresno, Inyo, Madera, Mariposa, Mono, Nevada, Placer, Plumas, Sierra, Tulare and...  
Distribution USA: California. Alpine, El Dorado, Fresno, Inyo, Madera, Mariposa, Mono, Nevada, Placer, Plumas, Sierra, Tulare and Tuolumne counties. Sierra Nevada mountain range. [details]

Taxonomic remark Source in seed data: ipni Update namepublishedIn from Kew Bull. 68(1): 98. 2013 [11 Jan 2013] [epublished] to Kew Bull. 68:...  
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Kew Bull. 68(1): 98. 2013 [11 Jan 2013] [epublished] to Kew Bull. 68: 98 (2012), information provided by Alan E. on email Jun. 07 2021 [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Calliscirpus brachythrix C.N.Gilmour, J.R.Starr & Naczi. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1680374 on 2025-09-12
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin

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Nomenclature

original description Gilmour, C. N.; Starr, J. R.; Naczi, R. F. C. (2013). Calliscirpus, a new genus for two narrow endemics of the California Floristic Province, C. criniger and C. brachythrix sp. nov. (Cyperaceae). Kew Bulletin, 68(1): 85-105., available online at https://doi.org/10.1007/s12225-012-9420-2 [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 
   

Holotype CMN CAN 10091211 (Barcode), geounit California [details]
From editor or global species database
Description Herb cespitose, short-rhizomatous, perennial. Culms 19 – 85 cm x 1.1 – 1.9 mm, prominently striate, occasionally scabridulous near the apex. Leaves 3 – 6, basal and cauline, striate, 10 – 85 cm x 1 – 5 mm, distal leaf longer than sheath; leaf sheaths green or light brown at base, filamentose, dry and persistent. Ligule fimbriate with hairs 0.05 – 0.2 mm. Inflorescences capitate; bracts 2 – 5, sheathless, scale-like, 0.35 – 2 cm, rarely green and large, sometimes mucronate; Spikelets 5 - 30 or more, oblong-lanceoloid, 5 - 14 mm in flower and fruit, in a dense ovoid to hemispheric head of 1 or more inconspicuous branches; floral scales brown, with pale green or brown, sometimes red-spotted, 1 – 3-ribbed centre, ovate-oblong, 1.2 – 5.7 x 0.6 – 1.3 mm, apex acute; perianth bristles 6 (–12), 4 – 10 mm long, antrorsely barbed, elongate, straight; barbs thin, short, sparse; anthers 1.2 – 2 mm long; style deciduous, linear, 3-fid. Achenes 1.3 – 3 x 0.6 – 1.1 mm, dark brown, usually dull, smooth, beak short, trigonous, oblong; embryo Carex-type (Figure 8). [details]

Diagnosis This species differs from Calliscirpus criniger (A. Gray) C. N. Gilmour, J. R. Starr, & Naczi by its shorter ligule hairs, narrower floral scales, and less dense bristle barbs. [details]

Diagnosis This species differs from Calliscirpus criniger (A. Gray) C. N. Gilmour, J. R. Starr, & Naczi by its shorter ligule hairs, narrower floral scales, and less dense bristle barbs. [details]

Diagnosis This species differs from Calliscirpus criniger (A. Gray) C. N. Gilmour, J. R. Starr, & Naczi by its shorter ligule hairs, narrower floral scales, and less dense bristle barbs. [details]

Distribution USA: California. Alpine, El Dorado, Fresno, Inyo, Madera, Mariposa, Mono, Nevada, Placer, Plumas, Sierra, Tulare and Tuolumne counties. Sierra Nevada mountain range. [details]

Taxonomic remark Source in seed data: ipni Update namepublishedIn from Kew Bull. 68(1): 98. 2013 [11 Jan 2013] [epublished] to Kew Bull. 68: 98 (2012), information provided by Alan E. on email Jun. 07 2021 [details]
To European Nucleotide Archive, ENA (Calliscirpus brachythrix) 
To GenBank (20 nucleotides; 10 proteins) 
To International Plant Names Index (IPNI) 
To Plants of the World Online 
To Royal Botanic Gardens, Kew (Calliscirpus brachythrix K001057526 type 1) 
From editor or global species database
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