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Cyperaceae taxon details

Carex corrugata Fernald

1676718  (urn:lsid:marinespecies.org:taxname:1676718)

accepted
Species
Carex rugata Fernald · unaccepted
terrestrial
Fernald, M. L. (1942). Carex corrugata from Alabama. <em>Rhodora.</em> 44: 76., available online at https://www.biodiversitylibrary.org/page/608622#page/83/mode/1up
page(s): 76 [details] 
Description Plants densely cespitose; rhizome internodes 1.2–2 mm thick. Culms dark purple-red to 4–35(–39) cm high at base,...  
Description Plants densely cespitose; rhizome internodes 1.2–2 mm thick. Culms dark purple-red to 4–35(–39) cm high at base, 15–90 cm. Leaves: sheaths glabrous; blades green, widest blades 3.3–5.3(–8) mm wide, smooth abaxially. Inflorescences 0.33–0.90 of culm height; peduncles of lateral spikes smooth or barely scaberulous; peduncles of terminal spikes 1.6–17(–56) mm, usually barely exceeding lateral spikes; proximal bract sheath loose, abaxially glabrous, sheath front slightly concave to slightly convex, elongated 0.2–3.0 mm beyond apex; ligules 1.4–5.4(–7.3) mm; distal bract much exceeding terminal spike. Spikes (3–)4–5, distal 2–4 overlapping; lateral spikes pistillate, with 3–27 perigynia, 5–30 × 4.6–9.6 mm, ratio of spike length (in mm) to flower number = 1.3–2; terminal spikes 7–35 × 1.3–3 mm. Pistillate scales 2.7–6.6 × 1.2—2.4 mm, margins whitish, usually with red-brown speckles, entire, apex with awn 0.3–2.6 mm. Staminate scales 3.1–4.8 × 0.9–1.7 mm. Anthers 1.8–2.8 mm. Perigynia spirally imbricate, 52–64-veined, wrinkled to unwrinkled, narrowly ellipsoid to obovoid, obtusely triangular in cross section, (3.6–)3.9–4.5(–4.7) × (1.7–)1.8–2.3(–2.4) mm, 1.8–2.3(–2.5) times as long as wide, lustrous, base gradually tapered, apex gradually tapered; beak absent or straight 0–0.2 mm. Achenes broadly obdeltoid-obovoid, widest at (0.6–)0.65–0.8 of body length, (2.4–)2.8–3.1(–3.3) × (1.6–)1.7–1.9(–2) mm, loosely enveloped by perigynia; stipe straight, (0.3–)0.4–0.5(–0.6) mm; beak straight, 0.3–0.6 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rhodora 44: 76 1942 to Rhodora 44: 76 (1942), information provided by...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rhodora 44: 76 1942 to Rhodora 44: 76 (1942), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Pla [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex corrugata Fernald. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676718 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 Fernald, M. L. (1942). Carex corrugata from Alabama. <em>Rhodora.</em> 44: 76., available online at https://www.biodiversitylibrary.org/page/608622#page/83/mode/1up
page(s): 76 [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 
   

Isotype (of Carex rugata Fernald) F 1489429, geounit Pennsylvania [details]
Isotype MO 357037, geounit Pennsylvania [details]
From editor or global species database
Description Plants densely cespitose; rhizome internodes 1.2–2 mm thick. Culms dark purple-red to 4–35(–39) cm high at base, 15–90 cm. Leaves: sheaths glabrous; blades green, widest blades 3.3–5.3(–8) mm wide, smooth abaxially. Inflorescences 0.33–0.90 of culm height; peduncles of lateral spikes smooth or barely scaberulous; peduncles of terminal spikes 1.6–17(–56) mm, usually barely exceeding lateral spikes; proximal bract sheath loose, abaxially glabrous, sheath front slightly concave to slightly convex, elongated 0.2–3.0 mm beyond apex; ligules 1.4–5.4(–7.3) mm; distal bract much exceeding terminal spike. Spikes (3–)4–5, distal 2–4 overlapping; lateral spikes pistillate, with 3–27 perigynia, 5–30 × 4.6–9.6 mm, ratio of spike length (in mm) to flower number = 1.3–2; terminal spikes 7–35 × 1.3–3 mm. Pistillate scales 2.7–6.6 × 1.2—2.4 mm, margins whitish, usually with red-brown speckles, entire, apex with awn 0.3–2.6 mm. Staminate scales 3.1–4.8 × 0.9–1.7 mm. Anthers 1.8–2.8 mm. Perigynia spirally imbricate, 52–64-veined, wrinkled to unwrinkled, narrowly ellipsoid to obovoid, obtusely triangular in cross section, (3.6–)3.9–4.5(–4.7) × (1.7–)1.8–2.3(–2.4) mm, 1.8–2.3(–2.5) times as long as wide, lustrous, base gradually tapered, apex gradually tapered; beak absent or straight 0–0.2 mm. Achenes broadly obdeltoid-obovoid, widest at (0.6–)0.65–0.8 of body length, (2.4–)2.8–3.1(–3.3) × (1.6–)1.7–1.9(–2) mm, loosely enveloped by perigynia; stipe straight, (0.3–)0.4–0.5(–0.6) mm; beak straight, 0.3–0.6 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rhodora 44: 76 1942 to Rhodora 44: 76 (1942), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Pla [details]