Cyperaceae taxon details
Carex fracta Mack.
1677751 (urn:lsid:marinespecies.org:taxname:1677751)
accepted
Species
Carex amplectens Mack. · unaccepted > junior subjective synonym
terrestrial
Mackenzie, K. K. (1922). A monograph of the California species of the genus Carex. <em>Erythea.</em> 8: 7-95., available online at https://archive.org/details/erytheajournalof08jeps/page/95/mode/1up
page(s): 38 [details]
page(s): 38 [details]
Holotype US 00087199, geounit California
Holotype US 00087199, geounit California [details]
Description Plants densely cespitose. Culms 60–115 cm. Leaves: sheaths adaxially green-veined at least in proximal 1/2, Y-shaped...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Erythea 8: 38 1922 to Erythea 8: 38 (1922), information provided by...
Description Plants densely cespitose. Culms 60–115 cm. Leaves: sheaths adaxially green-veined at least in proximal 1/2, Y-shaped white-hyaline band extending at least 10 mm proximal to collar, firm, summits rounded, usually prolonged to 3–9 mm beyond collar; distal ligules (1.5–)3–13 mm; blades 4–5(–6) per fertile culm, 20–45 cm × 4–7 mm. Inflorescences proximal branches often bearing more than 1 spike, open or dense, green to pale gold, 3.5–8 cm × 10–16 mm; proximal internode 3–18 mm; 2d internode 3–9 mm; proximal bracts bristlelike, shorter than inflorescences or occasionally leaflike. Spikes 11–35, distant or aggregated, individually distinct or indistinct, lanceoloid to broadly ovoid, 10–18 × 5–7 mm, base acute to attenuate, apex rounded to tapered. Pistillate scales white-hyaline or gold, occasionally tinged brownish or green, with green to gold midstripe, lanceolate or ovate, (2.8–)3.6–4.5 mm, shorter or longer and narrower than perigynia, apex long-acuminate to awned. Perigynia ascending to spreading, green to gold, conspicuously 8–11-veined abaxially, conspicuously 5–8-veined adaxially, ovate, plano-convex, 2.9–4(–4.8) × 1–1.7 mm, 0.5 mm thick, margin flat, including wing 0.1–0.2(–0.3) mm wide, ciliate-serrulate at least distally; beak gold or white at tip, usually cylindric, sometimes falcate, unwinged, ± entire for 0.1–0.5 mm, abaxial suture usually inconspicuous, distance from beak tip to achene 1.3–2(–2.8) mm. Achenes ovate to elliptic, 1.3–1.6 × 0.8–1.2 mm, (0.3–)0.4–0.5 mm thick. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Erythea 8: 38 1922 to Erythea 8: 38 (1922), information provided by...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Erythea 8: 38 1922 to Erythea 8: 38 (1922), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex fracta Mack.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677751 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
Mackenzie, K. K. (1922). A monograph of the California species of the genus Carex. <em>Erythea.</em> 8: 7-95., available online at https://archive.org/details/erytheajournalof08jeps/page/95/mode/1up
page(s): 38 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 38 [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 US 00087199, geounit California [details]
From editor or global species database
Description Plants densely cespitose. Culms 60–115 cm. Leaves: sheaths adaxially green-veined at least in proximal 1/2, Y-shaped white-hyaline band extending at least 10 mm proximal to collar, firm, summits rounded, usually prolonged to 3–9 mm beyond collar; distal ligules (1.5–)3–13 mm; blades 4–5(–6) per fertile culm, 20–45 cm × 4–7 mm. Inflorescences proximal branches often bearing more than 1 spike, open or dense, green to pale gold, 3.5–8 cm × 10–16 mm; proximal internode 3–18 mm; 2d internode 3–9 mm; proximal bracts bristlelike, shorter than inflorescences or occasionally leaflike. Spikes 11–35, distant or aggregated, individually distinct or indistinct, lanceoloid to broadly ovoid, 10–18 × 5–7 mm, base acute to attenuate, apex rounded to tapered. Pistillate scales white-hyaline or gold, occasionally tinged brownish or green, with green to gold midstripe, lanceolate or ovate, (2.8–)3.6–4.5 mm, shorter or longer and narrower than perigynia, apex long-acuminate to awned. Perigynia ascending to spreading, green to gold, conspicuously 8–11-veined abaxially, conspicuously 5–8-veined adaxially, ovate, plano-convex, 2.9–4(–4.8) × 1–1.7 mm, 0.5 mm thick, margin flat, including wing 0.1–0.2(–0.3) mm wide, ciliate-serrulate at least distally; beak gold or white at tip, usually cylindric, sometimes falcate, unwinged, ± entire for 0.1–0.5 mm, abaxial suture usually inconspicuous, distance from beak tip to achene 1.3–2(–2.8) mm. Achenes ovate to elliptic, 1.3–1.6 × 0.8–1.2 mm, (0.3–)0.4–0.5 mm thick. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Erythea 8: 38 1922 to Erythea 8: 38 (1922), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant [details]
To Biodiversity Heritage Library (11 publications) (from synonym Carex amplectens Mack.)
To Biodiversity Heritage Library (15 publications)
To European Nucleotide Archive, ENA (Carex fracta)
To GenBank (12 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex amplectens Mack.)
To Plants of the World Online (from synonym Carex amplectens Mack.)
To Plants of the World Online
To US Herbarium (Carex fracta US817810 type 1)
To Biodiversity Heritage Library (15 publications)
To European Nucleotide Archive, ENA (Carex fracta)
To GenBank (12 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex amplectens Mack.)
To Plants of the World Online (from synonym Carex amplectens Mack.)
To Plants of the World Online
To US Herbarium (Carex fracta US817810 type 1)
