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Cyperaceae taxon details

Carex chapmanii Steud.

1675976  (urn:lsid:marinespecies.org:taxname:1675976)

accepted
Species
terrestrial
Steudel, E.G. (1855). Synopsis Plantarum Glumacearum. Cyperaceae et familiae affines, Restiaceae, Eriocauloneae, Xyrideae, Desvauxieae, Junceae. Pars II, pp. 1-348. J.B. Metzler. Stuttgart., available online at https://www.biodiversitylibrary.org/page/348937, https://archive.org/details/mobot31753002755921/mode/2up?view=theater
page(s): 222 [details] OpenAccess publication
Description Culms loosely tufted or solitary, ascending or lax, 10–32 cm × 0.8–1.6 mm. Leaves: basal sheaths light brown to brown;...  
Description Culms loosely tufted or solitary, ascending or lax, 10–32 cm × 0.8–1.6 mm. Leaves: basal sheaths light brown to brown; sheaths green or yellow-green, 2–26 mm; blades ascending, green or yellow-green, midrib well developed abaxially, 2 lateral veins well developed adaxially, flat, 18–44 cm × 12–14 mm, blades of owerwintering leaves smooth. Inflorescences: peduncles of proximal spike to 6 cm, longer lateral ones 4.6–14 times as long as spikes they subtend, arising in proximal 1/3 of culm, distal lateral spikes not exserted; peduncle of terminal spike 0–2.8 cm; bracts 8–21 × 1–4 mm, blade of distal lateral spike linear, narrower than spikes, widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes 3(–4) per culm; lateral spikes 7–20 × 2.5–4.5 mm; terminal spike 11–35 × 1.8–3 mm. Pistillate scales 2–2.5 × 0.8–1.2 mm, apex acute or mucronate. Staminate scales 3.2–4.2 × 1–1.2 mm, margins hyaline or brown tinged, apex acute. Anthers 3.5–4 mm. Perigynia 6–18 per spike, closely to loosely overlapping, ratio of longer lateral spike length to perigynia number 0.8–2.4, aggregated, spreading, finely, conspicuously (22–)25–32-veined, narrowly elongate, 3–5.2 × 1.2–1.6 mm; beak excurved, 0.4–1.7 mm. Achenes elongate-obovoid, 2.2–3 × 1.2–1.6 mm.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syn. Pl. Glumac. 2(8-9): 222. 1855 [10-11 Apr 1855] to Syn. Pl....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syn. Pl. Glumac. 2(8-9): 222. 1855 [10-11 Apr 1855] to Syn. Pl. Glumac. 2: 222 (1855), 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 chapmanii Steud.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1675976 on 2025-09-13
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
changed

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Nomenclature

original description Steudel, E.G. (1855). Synopsis Plantarum Glumacearum. Cyperaceae et familiae affines, Restiaceae, Eriocauloneae, Xyrideae, Desvauxieae, Junceae. Pars II, pp. 1-348. J.B. Metzler. Stuttgart., available online at https://www.biodiversitylibrary.org/page/348937, https://archive.org/details/mobot31753002755921/mode/2up?view=theater
page(s): 222 [details] OpenAccess publication

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 
   

Isotype P 00306189, geounit Florida [details]
From editor or global species database
Description Culms loosely tufted or solitary, ascending or lax, 10–32 cm × 0.8–1.6 mm. Leaves: basal sheaths light brown to brown; sheaths green or yellow-green, 2–26 mm; blades ascending, green or yellow-green, midrib well developed abaxially, 2 lateral veins well developed adaxially, flat, 18–44 cm × 12–14 mm, blades of owerwintering leaves smooth. Inflorescences: peduncles of proximal spike to 6 cm, longer lateral ones 4.6–14 times as long as spikes they subtend, arising in proximal 1/3 of culm, distal lateral spikes not exserted; peduncle of terminal spike 0–2.8 cm; bracts 8–21 × 1–4 mm, blade of distal lateral spike linear, narrower than spikes, widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes 3(–4) per culm; lateral spikes 7–20 × 2.5–4.5 mm; terminal spike 11–35 × 1.8–3 mm. Pistillate scales 2–2.5 × 0.8–1.2 mm, apex acute or mucronate. Staminate scales 3.2–4.2 × 1–1.2 mm, margins hyaline or brown tinged, apex acute. Anthers 3.5–4 mm. Perigynia 6–18 per spike, closely to loosely overlapping, ratio of longer lateral spike length to perigynia number 0.8–2.4, aggregated, spreading, finely, conspicuously (22–)25–32-veined, narrowly elongate, 3–5.2 × 1.2–1.6 mm; beak excurved, 0.4–1.7 mm. Achenes elongate-obovoid, 2.2–3 × 1.2–1.6 mm.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syn. Pl. Glumac. 2(8-9): 222. 1855 [10-11 Apr 1855] to Syn. Pl. Glumac. 2: 222 (1855), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]