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Cyperaceae taxon details

Carex subandrogyna G.A.Wheeler & Guagl.

1676092 (urn:lsid:marinespecies.org:taxname:1676092)

accepted
Species
terrestrial
Wheeler, G. A. & Guaglianone, E. R. (2003). A new species of Carex (Cyperaceae) from Argentina. <em>Hickenia.</em> 3: 163-166., available online at https://www.hickenia.darwin.edu.ar/index.php/hickenia/article/view/51/48
page(s): 163 [details] Available for editors  PDF available [request]
Holotype  SI 000237, geounit Jujuy  
Holotype SI 000237, geounit Jujuy [details]
Description Plants cespitose, the rhizomes short; fertile culms (8-)23–46 cm tall, 1–1.4 mm wide, acutely trigonous and somewhat...  
Description Plants cespitose, the rhizomes short; fertile culms (8-)23–46 cm tall, 1–1.4 mm wide, acutely trigonous and somewhat winged beneath the inflorescence, compressed-flattened below, antrorsely scabrous-angled (at least distally), erect or slightly curved, with glabrous, brown to dark brown basal sheaths, fibrillose at the base, old leaves conspicuous. Leaves 5–7, clustered near the base; blades 7–37 cm long, 2.6–5.6(-7.5) mm wide, more or less flattened but channelled near the base, usually papillose or scabrate on the upper surface (at least distally), smooth below though often scaberulent on the midrib, the margins antrorsely scabrous distally; leaf sheaths less than 6 cm long, tightly enveloping culms, glabrous, greenish or pale brown, the inner band glabrous, hyaline or pale brown, the apex slightly concave; ligules 1.5–2 mm long, rounded, the free portion brown. Inflorescences 2–5 cm long, spikes approximate or somewhat separated; inflorescence prophylls conspicuous, 1.3–2 mm long, urceolate, hardly thickened dorsally, brownish; bracts sheathless, the lowest 1 or 2 leaf-like and generally exceeding the inflorescence, long acuminate with the lowest one 3.5–13 cm long and up to 3.2 mm wide, the uppermost bracts shorter and more or less setaceous. Spikes 2–4, androgynous, 5.5–18 mm long, the terminal and lateral ones similar, single at nodes, erect; the staminate portion 2.5–3 mm long, 1.6–2 mm wide, ca. 5–9-flowered; the pistillate portion 3–15 mm long, 3–6 mm wide, 4–30-flowered. Staminate scales 1.2–2 mm long, 0.5–0.8 mm wide, oblong-ovate, acute, stramineous to pale brown, with a pale greenish to stramineous center, 1-veined. Pistillate scales 2–8.5 mm long, 0.8–1.4 mm wide, the body shorter than the perigynium, ovate to ovate-lanceolate, acute to acuminate-awned, with a scabrous-ciliate awn up to 7.2 mm long, stramineous to pale brown, with a pale greenish or stramineous center, 3-veined. Perigynia 2.4–2.9 mm long, 1.2–1.6 mm wide, mostly ascending, trigonous with broadly elliptical or slightly obovate sides, membranaceous, pale brown to brown, glabrous, 2 lateral veins prominent and the rest obscure, tapered to a substipitate base, more or less abruptly contracted into a very short beak; beak 0.3 mm long or less, brownish, margins smooth, the apex usually erose. Achenes trigonous with ovate-oblong sides, 1.8–2 mm long, 1.1–1.3 mm wide, pale brown, with a short, cone-shaped style base. Stigmas 3, short, reflexed and frequently once coiled, reddish. Anthers 3, ca. 0.6–0.8 mm long. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex subandrogyna G.A.Wheeler & Guagl.. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676092 on 2026-09-11
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 Wheeler, G. A. & Guaglianone, E. R. (2003). A new species of Carex (Cyperaceae) from Argentina. <em>Hickenia.</em> 3: 163-166., available online at https://www.hickenia.darwin.edu.ar/index.php/hickenia/article/view/51/48
page(s): 163 [details] Available for editors  PDF available [request]

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

Taxonomy

taxonomy source García-Moro, P.; Otero, A.; Benítez-Benítez, C.; Costa, L.; Martín-Bravo, S.; Naczi, R. F. C.; Reznicek, A. A.; Roalson, E. H.; Starr, J. R.; Jiménez-Mejías, P. (2022). Biogeography and systematics of Carex subgenus Uncinia (Cyperaceae): A unique radiation for the genus Carex in the Southern Hemisphere. Taxon, 71(3): 587-607., available online at https://doi.org/10.1002/tax.12678 [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Holotype SI 000237, geounit Jujuy [details]
Isotype MICH 953619, geounit Jujuy [details]
From editor or global species database
Description Plants cespitose, the rhizomes short; fertile culms (8-)23–46 cm tall, 1–1.4 mm wide, acutely trigonous and somewhat winged beneath the inflorescence, compressed-flattened below, antrorsely scabrous-angled (at least distally), erect or slightly curved, with glabrous, brown to dark brown basal sheaths, fibrillose at the base, old leaves conspicuous. Leaves 5–7, clustered near the base; blades 7–37 cm long, 2.6–5.6(-7.5) mm wide, more or less flattened but channelled near the base, usually papillose or scabrate on the upper surface (at least distally), smooth below though often scaberulent on the midrib, the margins antrorsely scabrous distally; leaf sheaths less than 6 cm long, tightly enveloping culms, glabrous, greenish or pale brown, the inner band glabrous, hyaline or pale brown, the apex slightly concave; ligules 1.5–2 mm long, rounded, the free portion brown. Inflorescences 2–5 cm long, spikes approximate or somewhat separated; inflorescence prophylls conspicuous, 1.3–2 mm long, urceolate, hardly thickened dorsally, brownish; bracts sheathless, the lowest 1 or 2 leaf-like and generally exceeding the inflorescence, long acuminate with the lowest one 3.5–13 cm long and up to 3.2 mm wide, the uppermost bracts shorter and more or less setaceous. Spikes 2–4, androgynous, 5.5–18 mm long, the terminal and lateral ones similar, single at nodes, erect; the staminate portion 2.5–3 mm long, 1.6–2 mm wide, ca. 5–9-flowered; the pistillate portion 3–15 mm long, 3–6 mm wide, 4–30-flowered. Staminate scales 1.2–2 mm long, 0.5–0.8 mm wide, oblong-ovate, acute, stramineous to pale brown, with a pale greenish to stramineous center, 1-veined. Pistillate scales 2–8.5 mm long, 0.8–1.4 mm wide, the body shorter than the perigynium, ovate to ovate-lanceolate, acute to acuminate-awned, with a scabrous-ciliate awn up to 7.2 mm long, stramineous to pale brown, with a pale greenish or stramineous center, 3-veined. Perigynia 2.4–2.9 mm long, 1.2–1.6 mm wide, mostly ascending, trigonous with broadly elliptical or slightly obovate sides, membranaceous, pale brown to brown, glabrous, 2 lateral veins prominent and the rest obscure, tapered to a substipitate base, more or less abruptly contracted into a very short beak; beak 0.3 mm long or less, brownish, margins smooth, the apex usually erose. Achenes trigonous with ovate-oblong sides, 1.8–2 mm long, 1.1–1.3 mm wide, pale brown, with a short, cone-shaped style base. Stigmas 3, short, reflexed and frequently once coiled, reddish. Anthers 3, ca. 0.6–0.8 mm long. [details]
    Definitions

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