Cyperaceae taxon details
Carex nasuensis K.T.Takah., T.Nog. & M.N.Tamura
1676346 (urn:lsid:marinespecies.org:taxname:1676346)
accepted
Species
terrestrial
Takahashi, K. T.; Noguchi, T.; Oda, J.; Fuse, S.; Tamura, M. N. (2022). Biosystematic Studies of Carex (Cyperaceae) II. Carex nasuensis, a New Species from Japan. <em>Acta Phytotaxonomica et Geobotanica.</em> 73(2): 107-118., available online at https://doi.org/10.18942/apg.202206
page(s): 114 [details] Available for editors
[request]
page(s): 114 [details] Available for editors
[request]
Holotype KYO, geounit Tochigi Prefecture
Holotype KYO, geounit Tochigi Prefecture [details]
Description Herbs, perennial, cespitose. Rhizome 1–3 mm long. Culm 20–50 cm long, erect, trigonous, smooth. Leaves basal, 10–35...
Description Herbs, perennial, cespitose. Rhizome 1–3 mm long. Culm 20–50 cm long, erect, trigonous, smooth. Leaves basal, 10–35 cm long, 3–10 mm broad, shorter than culm, light green, basal part of sheath pale brown. Bracts leaf-like, longer than spikes, long sheathed. Spikes 3(or 4). Terminal spike staminate, linear, 5–8 mm long, 1–1.5 mm broad, 4–8 flowered, short pedunculate, erect; staminate scales obovate, 3–4 mm long, acute, pale green, midrib green. Lateral spikes pisti late, ellipsoid to short cylindrical, 5–10 mm long, 5 mm broad, 2–4 flowered, short- or long-pedunculate, slightly drooping, (3.6–)6.1–14.3(–17.5) cm distance between uppermost and second uppermost pistillate spikes; pistillate scales obovate, 2–3(–3.5) mm long, acute, pale green, midrib green. Perigynia obtusely trigonous, 6.5–8 mm long, 1.5–2 mm broad, smooth, several veined, long-beaked, tapering to apex. Achene rather loosely enveloped by perigynium, ellipsoid, trigonous, 2–2.5 mm long. Stigmas 3. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex nasuensis K.T.Takah., T.Nog. & M.N.Tamura. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676346 on 2025-09-14
Date
action
by
2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
Takahashi, K. T.; Noguchi, T.; Oda, J.; Fuse, S.; Tamura, M. N. (2022). Biosystematic Studies of Carex (Cyperaceae) II. Carex nasuensis, a New Species from Japan. <em>Acta Phytotaxonomica et Geobotanica.</em> 73(2): 107-118., available online at https://doi.org/10.18942/apg.202206
page(s): 114 [details] Available for editors [request]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 114 [details] Available for editors
[request]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 KYO, geounit Tochigi Prefecture [details]
From editor or global species database
Description Herbs, perennial, cespitose. Rhizome 1–3 mm long. Culm 20–50 cm long, erect, trigonous, smooth. Leaves basal, 10–35 cm long, 3–10 mm broad, shorter than culm, light green, basal part of sheath pale brown. Bracts leaf-like, longer than spikes, long sheathed. Spikes 3(or 4). Terminal spike staminate, linear, 5–8 mm long, 1–1.5 mm broad, 4–8 flowered, short pedunculate, erect; staminate scales obovate, 3–4 mm long, acute, pale green, midrib green. Lateral spikes pisti late, ellipsoid to short cylindrical, 5–10 mm long, 5 mm broad, 2–4 flowered, short- or long-pedunculate, slightly drooping, (3.6–)6.1–14.3(–17.5) cm distance between uppermost and second uppermost pistillate spikes; pistillate scales obovate, 2–3(–3.5) mm long, acute, pale green, midrib green. Perigynia obtusely trigonous, 6.5–8 mm long, 1.5–2 mm broad, smooth, several veined, long-beaked, tapering to apex. Achene rather loosely enveloped by perigynium, ellipsoid, trigonous, 2–2.5 mm long. Stigmas 3. [details]
