Cyperaceae taxon details
Carex pigra Naczi
1677970 (urn:lsid:marinespecies.org:taxname:1677970)
accepted
Species
Carex flaccosperma var. pigra (Naczi) D.B.Ward · unaccepted
terrestrial
Naczi, R. F. C. (1997). Carex pigra, a new species of Carex section Griseae (Cyperaceae) from the southeastern United States of America. Novon , 7: 67-71.
page(s): 67 [details]
page(s): 67 [details]
Description Plants densely cespitose; rhizome internodes 1.2–2.8 mm thick. Culms yellow-brown at base, 10–50 cm. Leaves: sheaths...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 7: 67 1997 to Novon 7(1): 67. 1997 , information provided by...
Description Plants densely cespitose; rhizome internodes 1.2–2.8 mm thick. Culms yellow-brown at base, 10–50 cm. Leaves: sheaths glabrous; blades glaucous, widest blades 6.1–12.3 mm wide, smooth abaxially. Inflorescences 0.71–0.93 of culm height, rarely all spikes separate, peduncles of lateral spikes smooth, 0.4–11 cm; peduncles of terminal spikes 1.5–37(–62) mm, usually overlapping or shorter than distal lateral spike; proximal bract sheath loose, abaxially glabrous, sheath front slightly convex, elongated 0.2–2.2 mm beyond apex; ligules (3–)5.2–10.2 mm; distal bract slightly shorter than to much exceeding terminal spike. Spikes (3–)4–6, usually distal 2–3 overlapping; lateral spikes pistillate, longest ones with 11–25(–28) perigynia, 8–32 × 3.3–6.1(–6.8) mm, ratio of spike length (in mm) to flower number = (0.97–)1–1.3(–1.6); terminal spikes 6–32 × 1.8–3.3 mm. Pistillate scales 1.9–3.2(–4.5) × 1.3–2.2 mm, margins pale ferrugineous to whitish, entire, apex with awn 0.1–0.9(–1.9) mm. Staminate scales (3.9–)4.5–5.3 × 1.6–2 mm. Anthers 1.6–2.6 mm. Perigynia spirally imbricate, 42–56-veined, unwrinkled, narrowly ovoid, (3.7–)3.9–4.5(–4.7) × 1.5–2.2 mm, (1.9–)2.1–2.6(–2.8) times as long as wide, obtusely triangular in cross section, dull, base gradually tapered, apex gradually tapered; beak absent or straight, 0–0.2(–0.4) mm. Achenes obovoid, 2.6–3.1 × (1.3–)1.4–1.6 mm, 0.5–0.63 times as long as perigynia, loosely enveloped by perigynia; stipe straight, 0.1–0.3(–0.5) mm; beak bent (0–)30–90°, (0.1–)0.2–0.4(–0.5) mm. [details]
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 7: 67 1997 to Novon 7(1): 67. 1997 , information provided by...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 7: 67 1997 to Novon 7(1): 67. 1997 , information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex pigra Naczi. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677970 on 2025-09-12
Date
action
by
2024-12-10 11:47:54Z
unchecked
db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Naczi, R. F. C. (1997). Carex pigra, a new species of Carex section Griseae (Cyperaceae) from the southeastern United States of America. Novon , 7: 67-71.
page(s): 67 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 67 [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 US 00589221, geounit Mississippi [details]
From editor or global species database
Description Plants densely cespitose; rhizome internodes 1.2–2.8 mm thick. Culms yellow-brown at base, 10–50 cm. Leaves: sheaths glabrous; blades glaucous, widest blades 6.1–12.3 mm wide, smooth abaxially. Inflorescences 0.71–0.93 of culm height, rarely all spikes separate, peduncles of lateral spikes smooth, 0.4–11 cm; peduncles of terminal spikes 1.5–37(–62) mm, usually overlapping or shorter than distal lateral spike; proximal bract sheath loose, abaxially glabrous, sheath front slightly convex, elongated 0.2–2.2 mm beyond apex; ligules (3–)5.2–10.2 mm; distal bract slightly shorter than to much exceeding terminal spike. Spikes (3–)4–6, usually distal 2–3 overlapping; lateral spikes pistillate, longest ones with 11–25(–28) perigynia, 8–32 × 3.3–6.1(–6.8) mm, ratio of spike length (in mm) to flower number = (0.97–)1–1.3(–1.6); terminal spikes 6–32 × 1.8–3.3 mm. Pistillate scales 1.9–3.2(–4.5) × 1.3–2.2 mm, margins pale ferrugineous to whitish, entire, apex with awn 0.1–0.9(–1.9) mm. Staminate scales (3.9–)4.5–5.3 × 1.6–2 mm. Anthers 1.6–2.6 mm. Perigynia spirally imbricate, 42–56-veined, unwrinkled, narrowly ovoid, (3.7–)3.9–4.5(–4.7) × 1.5–2.2 mm, (1.9–)2.1–2.6(–2.8) times as long as wide, obtusely triangular in cross section, dull, base gradually tapered, apex gradually tapered; beak absent or straight, 0–0.2(–0.4) mm. Achenes obovoid, 2.6–3.1 × (1.3–)1.4–1.6 mm, 0.5–0.63 times as long as perigynia, loosely enveloped by perigynia; stipe straight, 0.1–0.3(–0.5) mm; beak bent (0–)30–90°, (0.1–)0.2–0.4(–0.5) mm. [details]Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 7: 67 1997 to Novon 7(1): 67. 1997 , information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant [details]
To Biodiversity Heritage Library (5 publications)
To European Nucleotide Archive, ENA (Carex pigra)
To GenBank (12 nucleotides; 8 proteins)
To International Plant Names Index (IPNI) (from synonym Carex flaccosperma var. pigra (Naczi) D.B.Ward)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Carex flaccosperma var. pigra (Naczi) D.B.Ward)
To US Herbarium (Carex pigra US3360666 type 1)
To European Nucleotide Archive, ENA (Carex pigra)
To GenBank (12 nucleotides; 8 proteins)
To International Plant Names Index (IPNI) (from synonym Carex flaccosperma var. pigra (Naczi) D.B.Ward)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Carex flaccosperma var. pigra (Naczi) D.B.Ward)
To US Herbarium (Carex pigra US3360666 type 1)
From editor or global species database
Hosted externally
