Cyperaceae taxon details
Carex infirminervia Naczi
1676483 (urn:lsid:marinespecies.org:taxname:1676483)
accepted
Species
terrestrial
Naczi R. F. C.; Bryson C. T.; Cochrane T. S. (2002). Seven new species and one new combination in Carex (Cyperaceae) from North America. Novon, 12(4): 508-532., available online at https://www.biodiversitylibrary.org/page/643091#page/509/mode/1up
page(s): 528 [details]
page(s): 528 [details]
Holotype UBC 14289, geounit British Columbia
Holotype UBC 14289, geounit British Columbia [details]
Description Plants densely cespitose. Culms 10–83 cm × 0.8–1.3 mm, papillose at mid height. Leaves: ligule of distal leaf...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Novon 12: 528 2002 to Novon 12: 528 (2002), information provided by...
Description Plants densely cespitose. Culms 10–83 cm × 0.8–1.3 mm, papillose at mid height. Leaves: ligule of distal leaf (2.1–)2.6–6.8 mm; blades 1.4–3.8 mm wide, widest blade 2.3–3.8 mm wide. Inflorescences 27–68 mm, proximalmost 2 spikes overalapping or separate; proximal internode 7.3–28 mm; proximal bract 11–61 mm; spikes (4–)5–6(–7), usually gynecandrous, sometimes pistillate or staminate; proximal spike usually with 1–3 staminate and 11–22 pistillate flowers, longest per plant with 12–22 pistillate flowers, 9.7–18 × 3.7–6.6 mm, longest per plant 12–18 mm; terminal spike usually with 1–3 staminate and 14–21 pistillate flowers, sessile or on peduncle to 1.8 mm, 9.6–16 × 3.4–6.2 mm. Pistillate scales whitish to castaneous, with green midrib, 2.9–4.4 mm, body 2.9–3.8 × 1.4–1.8 mm, apex acuminate to short-awned, awn to 1.1 mm. Staminate scales with whitish to castaneous margins, 3.1–4.3 × 1–1.5 mm, apex acute to short-awned. Anthers 1.3–1.8 mm. Perigynia erect to appressed-erect, green to brown, veinless or weakly 1–3(–4)-veined abaxially, veinless adaxially, narrowly lanceolate in outline, 3.7–5.3 × 1.1–1.3(–1.4) mm, 3.2–3.9(–4.2) times as long as wide, apex gradually tapering; beak 1.5–2.2 mm, 39–49% of total perigynium, margins denticulate for distal 49–60% of length of perigynium, apex entire or bidentulate, teeth 0–0.2(–0.4) mm, 0–8% of length of perigynium. Stigmas 1.8–2.5 mm. Achenes 1.6–2.2 × 1.1–1.3 mm, 1.5–1.8 times as long as wide. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Novon 12: 528 2002 to Novon 12: 528 (2002), information provided by...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Novon 12: 528 2002 to Novon 12: 528 (2002), 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 infirminervia Naczi. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676483 on 2025-09-14
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2024-12-10 11:47:54Z
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Nomenclature
original description
Naczi R. F. C.; Bryson C. T.; Cochrane T. S. (2002). Seven new species and one new combination in Carex (Cyperaceae) from North America. Novon, 12(4): 508-532., available online at https://www.biodiversitylibrary.org/page/643091#page/509/mode/1up
page(s): 528 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 528 [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 UBC 14289, geounit British Columbia [details]
From editor or global species database
Description Plants densely cespitose. Culms 10–83 cm × 0.8–1.3 mm, papillose at mid height. Leaves: ligule of distal leaf (2.1–)2.6–6.8 mm; blades 1.4–3.8 mm wide, widest blade 2.3–3.8 mm wide. Inflorescences 27–68 mm, proximalmost 2 spikes overalapping or separate; proximal internode 7.3–28 mm; proximal bract 11–61 mm; spikes (4–)5–6(–7), usually gynecandrous, sometimes pistillate or staminate; proximal spike usually with 1–3 staminate and 11–22 pistillate flowers, longest per plant with 12–22 pistillate flowers, 9.7–18 × 3.7–6.6 mm, longest per plant 12–18 mm; terminal spike usually with 1–3 staminate and 14–21 pistillate flowers, sessile or on peduncle to 1.8 mm, 9.6–16 × 3.4–6.2 mm. Pistillate scales whitish to castaneous, with green midrib, 2.9–4.4 mm, body 2.9–3.8 × 1.4–1.8 mm, apex acuminate to short-awned, awn to 1.1 mm. Staminate scales with whitish to castaneous margins, 3.1–4.3 × 1–1.5 mm, apex acute to short-awned. Anthers 1.3–1.8 mm. Perigynia erect to appressed-erect, green to brown, veinless or weakly 1–3(–4)-veined abaxially, veinless adaxially, narrowly lanceolate in outline, 3.7–5.3 × 1.1–1.3(–1.4) mm, 3.2–3.9(–4.2) times as long as wide, apex gradually tapering; beak 1.5–2.2 mm, 39–49% of total perigynium, margins denticulate for distal 49–60% of length of perigynium, apex entire or bidentulate, teeth 0–0.2(–0.4) mm, 0–8% of length of perigynium. Stigmas 1.8–2.5 mm. Achenes 1.6–2.2 × 1.1–1.3 mm, 1.5–1.8 times as long as wide. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Novon 12: 528 2002 to Novon 12: 528 (2002), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant [details]
