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Cyperaceae taxon details

Schoenus apogon Roem. & Schult.

1681411  (urn:lsid:marinespecies.org:taxname:1681411)

accepted
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marine, brackish, fresh, terrestrial
recent only
Not documented
Lectotype  (of Chaetospora imberbis R.Br.) BM 000991043,...  
Lectotype (of Chaetospora imberbis R.Br.) BM 000991043, geounit New South Wales [details]
Description Tufted annual. Culms erect, flaccid, terete, striate, nodeless or 1-noded, 3–25 (occasionally to 55) cm long, 0.5–1.2...  
Description Tufted annual. Culms erect, flaccid, terete, striate, nodeless or 1-noded, 3–25 (occasionally to 55) cm long, 0.5–1.2 mm diam. Leaves with blade to 15 cm long; sheath straw-coloured to dark red-brown, striate, more or less shining; mouth glabrous; ligule present. Inflorescence of 1 loosely hemispherical cluster of 6–16 spikelets, usually with 1–4 clusters below, erect, 1–15 cm long; lowest involucral bract to 17 cm long. Spikelets narrow-ovate, acute, 1–3-flowered, 2.5–7.5 mm long. Glumes 4–6, lowest 2–4 empty, narrow-ovate, acute, red-brown to blackish, shining, with glabrous margins, midvein often scabrous; fertile glumes 2.0–5.5 mm long. Bristles 5 or 6, not plumose, shorter than or equalling nut. Stamens 3; anthers 1.0–3.2 mm. long. Nut trigonous, obovoid to subglobose, 1.0–1.2 mm long, 0.6–0.8 mm diam., more or less 3-ribbed, reticulate-pitted to trabeculate, glabrous, shining, whitish. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syst. Veg. 2: 77 1817 to Syst. Veg., ed. 15 bis 2: 77 (1817),...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syst. Veg. 2: 77 1817 to Syst. Veg., ed. 15 bis 2: 77 (1817), 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. Schoenus apogon Roem. & Schult.. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1681411 on 2025-09-13
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-04-13 12:21:54Z
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Nomenclature

original description (of Chaetospora imberbis R.Br.) Brown, R. (1810). Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805 per oras utriusque insulae collegit et descripsit Robertus Brown; insertis passim aliis speciebus auctori hucusque cognitis, seu evulgatis, seu ineditis, praesertim Banksianis, in primo itinere navarchi Cook detectis. Vol. 1 pp. [i]-viii, 145-590 p., [1] h. ["Addenda"]. Londini [London]: typis Richardi Taylori et Scoii. Veneunt apud J. Johnson et Socios, in Caementerio Sancti Pauli., available online at https://www.biodiversitylibrary.org/page/6157371
page(s): 233 [details] 

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

Other

additional source Li, B. Z.; Zhang, S. R. (2024). An updated species checklist and taxonomic synopsis of Cyperaceae in China. <em>Biodiversity Science.</em> 32(7): 24106., available online at https://doi.org/10.17520/biods.2024106 [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Lectotype (of Chaetospora imberbis R.Br.) BM 000991043, geounit New South Wales [details]
From editor or global species database
Description Tufted annual. Culms erect, flaccid, terete, striate, nodeless or 1-noded, 3–25 (occasionally to 55) cm long, 0.5–1.2 mm diam. Leaves with blade to 15 cm long; sheath straw-coloured to dark red-brown, striate, more or less shining; mouth glabrous; ligule present. Inflorescence of 1 loosely hemispherical cluster of 6–16 spikelets, usually with 1–4 clusters below, erect, 1–15 cm long; lowest involucral bract to 17 cm long. Spikelets narrow-ovate, acute, 1–3-flowered, 2.5–7.5 mm long. Glumes 4–6, lowest 2–4 empty, narrow-ovate, acute, red-brown to blackish, shining, with glabrous margins, midvein often scabrous; fertile glumes 2.0–5.5 mm long. Bristles 5 or 6, not plumose, shorter than or equalling nut. Stamens 3; anthers 1.0–3.2 mm. long. Nut trigonous, obovoid to subglobose, 1.0–1.2 mm long, 0.6–0.8 mm diam., more or less 3-ribbed, reticulate-pitted to trabeculate, glabrous, shining, whitish. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syst. Veg. 2: 77 1817 to Syst. Veg., ed. 15 bis 2: 77 (1817), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]