Cyperaceae taxon details
Carex leptogyna T.Koyama
1677506 (urn:lsid:marinespecies.org:taxname:1677506)
accepted
Species
terrestrial
Koyama, T. (2018). Notes on Cyperaceae from Myanmar. Part 2. <em>Taiwania.</em> 63(1): 1-6., available online at https://taiwania.ntu.edu.tw/pdf/tai.2018.63.1.pdf
page(s): 1 [details] Available for editors
[request]
page(s): 1 [details] Available for editors
[request]
Holotype MBK 0272026, geounit Myanmar
Holotype MBK 0272026, geounit Myanmar [details]
Description Perennial robust herb with short suberect ligneous rhizomes. Culms up to 150 cm tall, ca. 5 mm thick
below, many-leaved...
below, many-leaved...
Description Perennial robust herb with short suberect ligneous rhizomes. Culms up to 150 cm tall, ca. 5 mm thick
below, many-leaved below the mid-point, trigonous, smooth, the base clothed with elongated purple-brown sheaths. Leaves linear, equaling the culm; blades 7 ‒ 10 mm wide, gradually narrowed to long acuminate apex. Inflorescences depaniculate, 40 ‒ 60 cm long, 4 ‒ 6 cm broad, subcontiguous and sublax but somewhat interrupted toward base; partial panicles 5, subcontiguous, only the lowest slightly aprat and on a long-exserted peduncle. Leafy bracts ± equalling the inflorescence, gradually narrowed to long acuminate apex, the lowest long sheathing. Spikes cylindric, 3 ‒ 5 cm long, 5 ‒ 6 mm thick, densely flowered; staminate part linear, 5 ‒ 20 mm long, ca. 1 mm wide; pistilate part
cylindrical, 2 ‒ 3 times as long as the staminate part, 2 ‒ 3 cm long, subdensely many-flowered. Psitillate glumes broadly ovate, 1.8 ‒ 2 mm long, ca. 1.25 mm wide, membrabous, pale-brownish, acute at apex, costa 1 excurrent from the glume apex into a short awn 0.5 ‒ 0.7 mm long. Utricles elliptical, 2.5 ‒ 2.75 mm long, ca. 1.5 mm wide, herbaceous, hardly inflated, totally glabrous except on the beak, 2-costate, 4 ‒ 6-nerved on dorsal and ventral sides, cuneate to base, subabruptly attenuate to apex, the beak short, 0.4 ‒ 0.7 mm long, sparsely hispidulous on margins, the orifice obliquely truncate minutely 2-toothed. Nutlets elliptical, triquestrous, 2.5 × 1 mm in size, cuneate at base rather gradually attenuate to apex; stigmas 3. [details]
below, many-leaved below the mid-point, trigonous, smooth, the base clothed with elongated purple-brown sheaths. Leaves linear, equaling the culm; blades 7 ‒ 10 mm wide, gradually narrowed to long acuminate apex. Inflorescences depaniculate, 40 ‒ 60 cm long, 4 ‒ 6 cm broad, subcontiguous and sublax but somewhat interrupted toward base; partial panicles 5, subcontiguous, only the lowest slightly aprat and on a long-exserted peduncle. Leafy bracts ± equalling the inflorescence, gradually narrowed to long acuminate apex, the lowest long sheathing. Spikes cylindric, 3 ‒ 5 cm long, 5 ‒ 6 mm thick, densely flowered; staminate part linear, 5 ‒ 20 mm long, ca. 1 mm wide; pistilate part
cylindrical, 2 ‒ 3 times as long as the staminate part, 2 ‒ 3 cm long, subdensely many-flowered. Psitillate glumes broadly ovate, 1.8 ‒ 2 mm long, ca. 1.25 mm wide, membrabous, pale-brownish, acute at apex, costa 1 excurrent from the glume apex into a short awn 0.5 ‒ 0.7 mm long. Utricles elliptical, 2.5 ‒ 2.75 mm long, ca. 1.5 mm wide, herbaceous, hardly inflated, totally glabrous except on the beak, 2-costate, 4 ‒ 6-nerved on dorsal and ventral sides, cuneate to base, subabruptly attenuate to apex, the beak short, 0.4 ‒ 0.7 mm long, sparsely hispidulous on margins, the orifice obliquely truncate minutely 2-toothed. Nutlets elliptical, triquestrous, 2.5 × 1 mm in size, cuneate at base rather gradually attenuate to apex; stigmas 3. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex leptogyna T.Koyama. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677506 on 2025-09-11
Date
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2024-12-10 11:47:54Z
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Nomenclature
original description
Koyama, T. (2018). Notes on Cyperaceae from Myanmar. Part 2. <em>Taiwania.</em> 63(1): 1-6., available online at https://taiwania.ntu.edu.tw/pdf/tai.2018.63.1.pdf
page(s): 1 [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): 1 [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 MBK 0272026, geounit Myanmar [details]
From editor or global species database
Description Perennial robust herb with short suberect ligneous rhizomes. Culms up to 150 cm tall, ca. 5 mm thick below, many-leaved below the mid-point, trigonous, smooth, the base clothed with elongated purple-brown sheaths. Leaves linear, equaling the culm; blades 7 ‒ 10 mm wide, gradually narrowed to long acuminate apex. Inflorescences depaniculate, 40 ‒ 60 cm long, 4 ‒ 6 cm broad, subcontiguous and sublax but somewhat interrupted toward base; partial panicles 5, subcontiguous, only the lowest slightly aprat and on a long-exserted peduncle. Leafy bracts ± equalling the inflorescence, gradually narrowed to long acuminate apex, the lowest long sheathing. Spikes cylindric, 3 ‒ 5 cm long, 5 ‒ 6 mm thick, densely flowered; staminate part linear, 5 ‒ 20 mm long, ca. 1 mm wide; pistilate part
cylindrical, 2 ‒ 3 times as long as the staminate part, 2 ‒ 3 cm long, subdensely many-flowered. Psitillate glumes broadly ovate, 1.8 ‒ 2 mm long, ca. 1.25 mm wide, membrabous, pale-brownish, acute at apex, costa 1 excurrent from the glume apex into a short awn 0.5 ‒ 0.7 mm long. Utricles elliptical, 2.5 ‒ 2.75 mm long, ca. 1.5 mm wide, herbaceous, hardly inflated, totally glabrous except on the beak, 2-costate, 4 ‒ 6-nerved on dorsal and ventral sides, cuneate to base, subabruptly attenuate to apex, the beak short, 0.4 ‒ 0.7 mm long, sparsely hispidulous on margins, the orifice obliquely truncate minutely 2-toothed. Nutlets elliptical, triquestrous, 2.5 × 1 mm in size, cuneate at base rather gradually attenuate to apex; stigmas 3. [details]
