Cyperaceae taxon details
Carex orestera Zika
1676659 (urn:lsid:marinespecies.org:taxname:1676659)
accepted
Species
terrestrial
Zika, P. F. (2012). Carex orestera (Cyperaceae), a New Sedge from the Mountains of California. <em>Novon.</em> 22(1): 118-124., available online at https://www.biodiversitylibrary.org/page/49568681#page/120/mode/1up
page(s): 118 [details]
page(s): 118 [details]
Holotype V-001291, geounit California
Holotype V-001291, geounit California [details]
Description Plants perennial, densely to loosely caespitose; rhizomes short or slightly elongated, 1-30 X 1.5-2. 5 mm, clothed in light...
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Novon 22(1): 118. 2012 [10 Jul 2012] to Novon 22: 118 (2012),...
Description Plants perennial, densely to loosely caespitose; rhizomes short or slightly elongated, 1-30 X 1.5-2. 5 mm, clothed in light brown to mid brown scales, sometimes slightly fibrous; fertile stems (culms) sharply triangular, scabrous distally, longer than leaves, 3.5-39 cm tall, bractlike leaf with blade 1-9.5 cm bladeless scalelike basal leaves. Stem bases light brown, sometimes suffused with red-purple. Leaves blue-green, glabrous, papillose adaxially and abaxially, blades folded in V- or W-shape when fresh, sometimes flattening with age, abaxial surface with midvein more pronounced than lateral veins, margins scabrous, blades 20-110 X 1.3-3. 5 mm; sheath faces smooth, white to translucent or pale brown, truncate or shallowly notched, not fibrillose, often overlapping and obscured. Inflorescences dark purple, erect, 14-60 X 4^12 mm; 2 to 4(5) ascending spikes, in elliptic to ovate (rarely oblong) cluster, rarely basal spikes separated 15-33 mm; inflorescence bract green or more usually dark purple with green midvein, sheath 0-4 mm, blade green or purple and green, 0-65 mm; basal spike subsessile, rarely on erect peduncle 3-21 mm; lateral spikes pistillate, narrowly oblong to lance-oblong, 4-12(— 19) X 2.5-5 mm; terminal spike 7-20 X 4-8.5 mm, mostly mixed sex, perigynia usually terminal and spike 9/6 (gynecandrous) or 9 / 6 / 9 , rarely 9 / 6 , 6/9 (androgynous), or 6 , staminate portion of spike usually less than 70% of length; scales from lower half of lateral pistillate spikes usually lanceolate to oblong or elliptic, narrowly ovate, sometimes narrowly elliptic, elliptic-ovate, or ovate, dark purple, smooth or papillose to scabrous distally, midvein usually pale and conspicuous, 2. 7-3. 7 mm, margins with narrow hyaline zone 0.05-0.5 mm wide, hyaline margin broadest on staminate scales, base clasping rachis, apex blunt, mucro 0. 1-0.3 mm, scabrous or not. Perigynia mostly oblanceolate to narrowly elliptic, less common variants are elliptic to flattened but bulging over achene, dark purple or largely so on a green background, the green aging to golden brown, not scabrous, papillose at 20X, 2.4-3.6 X 0.9-1. 4(— 1.6) mm, faces nerveless or 1 to 3 faint adaxial nerves, 1 to 6 faint abaxial nerves, base acute to acuminate, apex abruptly tapered to distinct beak 0.2–0.3 mm; beak teeth acute, 0.1–0.15 mm, dark purple, white-tipped, inconspicuous; anthers 2.2–3.5 3 0.3–0.4 mm when dehisced, including terminal awn 0.1–0.2 mm; stigmas 3, plumose, exserted. Achenes mid brown, trigonous-elliptic, surface granular at 203, body 1.2–1.6 3 0.7–0.95 mm, not including stipe or style, stipe (0–)0.2–0.4 mm, style remnant 0.05–0.9 mm; achenes filling more than half the perigynium [details]
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Novon 22(1): 118. 2012 [10 Jul 2012] to Novon 22: 118 (2012),...
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Novon 22(1): 118. 2012 [10 Jul 2012] to Novon 22: 118 (2012), information provided by Alan E. on email Jun. 07 2021 [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex orestera Zika. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676659 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
Zika, P. F. (2012). Carex orestera (Cyperaceae), a New Sedge from the Mountains of California. <em>Novon.</em> 22(1): 118-124., available online at https://www.biodiversitylibrary.org/page/49568681#page/120/mode/1up
page(s): 118 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 118 [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
From editor or global species database
Description Plants perennial, densely to loosely caespitose; rhizomes short or slightly elongated, 1-30 X 1.5-2. 5 mm, clothed in light brown to mid brown scales, sometimes slightly fibrous; fertile stems (culms) sharply triangular, scabrous distally, longer than leaves, 3.5-39 cm tall, bractlike leaf with blade 1-9.5 cm bladeless scalelike basal leaves. Stem bases light brown, sometimes suffused with red-purple. Leaves blue-green, glabrous, papillose adaxially and abaxially, blades folded in V- or W-shape when fresh, sometimes flattening with age, abaxial surface with midvein more pronounced than lateral veins, margins scabrous, blades 20-110 X 1.3-3. 5 mm; sheath faces smooth, white to translucent or pale brown, truncate or shallowly notched, not fibrillose, often overlapping and obscured. Inflorescences dark purple, erect, 14-60 X 4^12 mm; 2 to 4(5) ascending spikes, in elliptic to ovate (rarely oblong) cluster, rarely basal spikes separated 15-33 mm; inflorescence bract green or more usually dark purple with green midvein, sheath 0-4 mm, blade green or purple and green, 0-65 mm; basal spike subsessile, rarely on erect peduncle 3-21 mm; lateral spikes pistillate, narrowly oblong to lance-oblong, 4-12(— 19) X 2.5-5 mm; terminal spike 7-20 X 4-8.5 mm, mostly mixed sex, perigynia usually terminal and spike 9/6 (gynecandrous) or 9 / 6 / 9 , rarely 9 / 6 , 6/9 (androgynous), or 6 , staminate portion of spike usually less than 70% of length; scales from lower half of lateral pistillate spikes usually lanceolate to oblong or elliptic, narrowly ovate, sometimes narrowly elliptic, elliptic-ovate, or ovate, dark purple, smooth or papillose to scabrous distally, midvein usually pale and conspicuous, 2. 7-3. 7 mm, margins with narrow hyaline zone 0.05-0.5 mm wide, hyaline margin broadest on staminate scales, base clasping rachis, apex blunt, mucro 0. 1-0.3 mm, scabrous or not. Perigynia mostly oblanceolate to narrowly elliptic, less common variants are elliptic to flattened but bulging over achene, dark purple or largely so on a green background, the green aging to golden brown, not scabrous, papillose at 20X, 2.4-3.6 X 0.9-1. 4(— 1.6) mm, faces nerveless or 1 to 3 faint adaxial nerves, 1 to 6 faint abaxial nerves, base acute to acuminate, apex abruptly tapered to distinct beak 0.2–0.3 mm; beak teeth acute, 0.1–0.15 mm, dark purple, white-tipped, inconspicuous; anthers 2.2–3.5 3 0.3–0.4 mm when dehisced, including terminal awn 0.1–0.2 mm; stigmas 3, plumose, exserted. Achenes mid brown, trigonous-elliptic, surface granular at 203, body 1.2–1.6 3 0.7–0.95 mm, not including stipe or style, stipe (0–)0.2–0.4 mm, style remnant 0.05–0.9 mm; achenes filling more than half the perigynium [details]Taxonomic remark Source in seed data: ipni Update namepublishedIn from Novon 22(1): 118. 2012 [10 Jul 2012] to Novon 22: 118 (2012), information provided by Alan E. on email Jun. 07 2021 [details]
To Biodiversity Heritage Library (3 publications)
To European Nucleotide Archive, ENA (Carex orestera)
To GenBank (8 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex orestera US3654037 type 1)
To European Nucleotide Archive, ENA (Carex orestera)
To GenBank (8 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex orestera US3654037 type 1)
From editor or global species database
Hosted externally
