Cyperaceae taxon details
Carex ×kurogii K.T.Takah. & M.N.Tamura
1813299 (urn:lsid:marinespecies.org:taxname:1813299)
accepted
Species
Carex kurogii K.T.Takah. & M.N.Tamura · alternative representation
recent only
Takahashi, K. T.; Oda, J.; Fuse, S.; Yano, O.; Lu, Y.-F.; Jin, X.-F.; Tamura, M. N. (2023). Biosystematic studies of <i>Carex</i> (Cyperaceae) III. Phylogenetic analyses of the <i>Carex filipes</i> complex (sect. <i>Paniceae</i>) in East Asia, with reference to morphology, karyology and taxonomy. <em>Acta Phytotaxonomica et Geobotanica.</em> 74(2): 71-103., available online at https://doi.org/10.18942/apg.202305
page(s): 96 [details] Available for editors
[request]
page(s): 96 [details] Available for editors
[request]
Holotype KYO, geounit Miyazaki
Holotype KYO, geounit Miyazaki [details]
Description Herbs, perennial, loosely caespitose, sometimes stoloniferous. Rhizome 0.5–4.2 cm long. Culm 21–40 cm long, erect,...
Taxonomic remark Carex rouyana Franch. × Carex sohayakiensis K.T.Takah. & M.N.Tamura
Description Herbs, perennial, loosely caespitose, sometimes stoloniferous. Rhizome 0.5–4.2 cm long. Culm 21–40 cm long, erect, trigonous, smooth. Leaves basal, 15–30 cm long, 1.5–6 mm broad, shorter than culm, light green, basal part of sheath pale brown or partly reddish purple. Bracts leaf-like, shorter than or as long as spikes, long sheathed. Spikes 3 or 4; terminal spike staminate, clavate, 1.5–2.7 cm long, 16–30-flowered, long-pedunculate, erect; staminate scales obovate, 4–5 mm long, acute, pale brown or partly reddish purple, midrib green; lateral spikes pistillate, linear, 1.5– 3 cm long, loosely 2–6-lowered, long-pedunculate, drooping; pistillate scales ovate, 3–4 mm ong, acute at apex, reddish purple, midrib green. Perigynia obtusely trigonous, 5.5–8.0 mm long, 1.5–2 mm broad, membranaceous, smooth, several-veined, long-beaked, abruptly narrowed to apex; beak 2.3–4.5 mm long. Achene tightly enveloped by perigynium, ellipsoid, trigonous, 2–2.5 mm long. Stigma 3 [details]
Taxonomic remark Carex rouyana Franch. × Carex sohayakiensis K.T.Takah. & M.N.Tamura
Taxonomic remark Carex rouyana Franch. × Carex sohayakiensis K.T.Takah. & M.N.Tamura [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex ×kurogii K.T.Takah. & M.N.Tamura. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1813299 on 2025-09-13
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Nomenclature
original description
Takahashi, K. T.; Oda, J.; Fuse, S.; Yano, O.; Lu, Y.-F.; Jin, X.-F.; Tamura, M. N. (2023). Biosystematic studies of <i>Carex</i> (Cyperaceae) III. Phylogenetic analyses of the <i>Carex filipes</i> complex (sect. <i>Paniceae</i>) in East Asia, with reference to morphology, karyology and taxonomy. <em>Acta Phytotaxonomica et Geobotanica.</em> 74(2): 71-103., available online at https://doi.org/10.18942/apg.202305
page(s): 96 [details] Available for editors [request]
page(s): 96 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
Holotype KYO, geounit Miyazaki [details]
From editor or global species database
Description Herbs, perennial, loosely caespitose, sometimes stoloniferous. Rhizome 0.5–4.2 cm long. Culm 21–40 cm long, erect, trigonous, smooth. Leaves basal, 15–30 cm long, 1.5–6 mm broad, shorter than culm, light green, basal part of sheath pale brown or partly reddish purple. Bracts leaf-like, shorter than or as long as spikes, long sheathed. Spikes 3 or 4; terminal spike staminate, clavate, 1.5–2.7 cm long, 16–30-flowered, long-pedunculate, erect; staminate scales obovate, 4–5 mm long, acute, pale brown or partly reddish purple, midrib green; lateral spikes pistillate, linear, 1.5– 3 cm long, loosely 2–6-lowered, long-pedunculate, drooping; pistillate scales ovate, 3–4 mm ong, acute at apex, reddish purple, midrib green. Perigynia obtusely trigonous, 5.5–8.0 mm long, 1.5–2 mm broad, membranaceous, smooth, several-veined, long-beaked, abruptly narrowed to apex; beak 2.3–4.5 mm long. Achene tightly enveloped by perigynium, ellipsoid, trigonous, 2–2.5 mm long. Stigma 3 [details]Taxonomic remark Carex rouyana Franch. × Carex sohayakiensis K.T.Takah. & M.N.Tamura [details]
