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Cyperaceae taxon details

Schoenoplectus subterminalis (Torr.) Soják

1681399  (urn:lsid:marinespecies.org:taxname:1681399)

accepted
Species
terrestrial
(of Scirpus subterminalis Torr.) Torrey, J. (1823). A flora of the northern and middle sections of the United States; or, A systematic arrangement and description of all the plants hitherto discovered in the United States north of Virginia. , available online at http:// https://www.biodiversitylibrary.org/item/26836
page(s): 47 [details] 
Lectotype  (of Scirpus subterminalis Torr.) NY 00051673,...  
Lectotype (of Scirpus subterminalis Torr.) NY 00051673, geounit Franklin [details]
Description Plants mat-forming; rhizomes to 1 mm diam; terminal tubers sometimes present, to 3 mm thick, fleshy. Culms subcylindric,...  
Description Plants mat-forming; rhizomes to 1 mm diam; terminal tubers sometimes present, to 3 mm thick, fleshy. Culms subcylindric, 0.2–1.5 m × 0.5–1 mm. Leaves 3–20+, smooth; sheath fronts sometimes delicately pinnate-fibrillose; blades 3–20, when erect C-shaped in cross section proximally, elliptic most of length, when submerged usually flaccid and filiform to narrowly ribbonlike, probably longer than sheath, 0.2–1 mm wide. Inflorescences a solitary, erect spikelet; proximal bract erect, like stiff leaf blade, 7–60 mm. Spikelets 5–15 × 3–7 mm; scales pale brown, or central region green when young, ovate-lanceolate, 4–6 × 1.5 mm, smooth, margins sometimes ciliolate apically at 40X, midrib obscure, apex acute, entire, minutely mucronate. Flowers: perianth members 6, brown, bristlelike, from 1/2 of to equaling achene beak, spinulose; anthers 2–3.5 mm; styles 3-fid. Achenes brown, strongly trigonous, obovoid to obpyriform, (2.5–)3–3.5 × 1.5–1.7 mm; beak 0.3–0.8 mm. 2n = 72. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Cas. Nšr. Mus., Odd. Pršr. 140: 127 1972 to Cas. Nšr. Mus., Odd....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Cas. Nšr. Mus., Odd. Pršr. 140: 127 1972 to Cas. Nšr. Mus., Odd. Pršr. 140: 127 (1972), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Schoenoplectus subterminalis (Torr.) Soják. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681399 on 2025-04-01
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
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Nomenclature

original description (of Scirpus subterminalis Torr.) Torrey, J. (1823). A flora of the northern and middle sections of the United States; or, A systematic arrangement and description of all the plants hitherto discovered in the United States north of Virginia. , available online at http:// https://www.biodiversitylibrary.org/item/26836
page(s): 47 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details] 

new combination reference (1972). Čas. Nár. Mus., Odd. Přír. 140(3-4)
page(s): 127 [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Lectotype (of Scirpus subterminalis Torr.) NY 00051673, geounit Franklin [details]
From editor or global species database
Description Plants mat-forming; rhizomes to 1 mm diam; terminal tubers sometimes present, to 3 mm thick, fleshy. Culms subcylindric, 0.2–1.5 m × 0.5–1 mm. Leaves 3–20+, smooth; sheath fronts sometimes delicately pinnate-fibrillose; blades 3–20, when erect C-shaped in cross section proximally, elliptic most of length, when submerged usually flaccid and filiform to narrowly ribbonlike, probably longer than sheath, 0.2–1 mm wide. Inflorescences a solitary, erect spikelet; proximal bract erect, like stiff leaf blade, 7–60 mm. Spikelets 5–15 × 3–7 mm; scales pale brown, or central region green when young, ovate-lanceolate, 4–6 × 1.5 mm, smooth, margins sometimes ciliolate apically at 40X, midrib obscure, apex acute, entire, minutely mucronate. Flowers: perianth members 6, brown, bristlelike, from 1/2 of to equaling achene beak, spinulose; anthers 2–3.5 mm; styles 3-fid. Achenes brown, strongly trigonous, obovoid to obpyriform, (2.5–)3–3.5 × 1.5–1.7 mm; beak 0.3–0.8 mm. 2n = 72. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Cas. Nšr. Mus., Odd. Pršr. 140: 127 1972 to Cas. Nšr. Mus., Odd. Pršr. 140: 127 (1972), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
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