Cyperaceae taxon details
Xyroschoenus hornei (C.B.Clarke) Larridon
1681961 (urn:lsid:marinespecies.org:taxname:1681961)
accepted
Species
Costularia hornei (C.B.Clarke) Kük. · unaccepted
Costularia hornei var. rectirhachilloidea Kük. · unaccepted
Lophoschoenus hornei (C.B.Clarke) Stapf · unaccepted
Schoenus hornei C.B.Clarke · unaccepted
Tetraria hornei (C.B.Clarke) T.Koyama · unaccepted
recent only
(of Schoenus hornei C.B.Clarke) Clarke, C. B. (1894). Cyperaceae. In: Durand, T.; Schinz, H. (eds.), Conspectus floræ Africæ, ou Énumération des plantes d'Afrique. Vol. V, pp. 526-692. Jardin Botanique de l´etat, Bruxelles., available online at https://www.biodiversitylibrary.org/page/29403422
page(s): 657 [details]
page(s): 657 [details]
Description Perennial tufted herbs, 0.9–1.5(–2) m high; plants clonal, 0.3–1 m across; rhizome thick, woody, short, branched,...
Description Perennial tufted herbs, 0.9–1.5(–2) m high; plants clonal, 0.3–1 m across; rhizome thick, woody, short, branched, 20–50 mm diam., not pseudobulbous, ultimately forming an erect caudex; old leaf sheaths covering the rhizome, sometimes breaking apart into fibres with age, reddish brown to dark brown; roots not sand-binding. Culms (above rosette) stout, erect, with 5–10 leafy nodes, obtusely trigonous, 3–9 mm diam., green, smooth, glabrous, base not enlarged. Leaves mostly basal, numerous, and 5–10 cauline; phyllotaxy loosely spirotristichous, sheath glabrous, open, 30–60 mm long, 20–30 mm wide, broader than the leaf lamina, brown, upper margin not membranous, ligule absent; basal leaves 50–90 cm long, (5–)10–15 mm wide, lamina dorsiventral, ± linear, coriaceous, curved, finely multi-striate, scabrid below on acute midrib, yellow-green, green, or sometimes dark green, slightly paler below, margins harshly scabrous to denticulate, sometimes splitting into fibres with age, revolute with age, apex gradually attenuate; cauline leaf lamina 20–50 cm long. Inflorescence open, panicle-like, spreading, lanceolate to ovate, 45–60 cm long, 10–55 cm wide, with 8–12 fertile nodes; axis green; bracts leaf-like, coriaceous, smooth, with reddish brown sheaths 20–25 mm long, becoming progressively smaller up the culm, shorter than the branchlets, basal bract usually much shorter than inflorescence; branchlets numerous, 8–25 cm long, arcuate downwards, solitary in lower part of inflorescence, the upper ones in groups of 4 or 5, arising in each bract axil, greatly exceeding the bract sheath; spikelets solitary on peduncles 3–8 mm long; spikelet prophyll subtending each spikelet glume-like, sheath 1.5–2.2 mm long, brown, partially enclosing the spikelet, with a slender lamina 3.1–4.5 mm long, brown. Spikelets very numerous, brown to dark brown, oblate to lanceolate, 5–8 mm long, 1.5–2 mm diam., acute, pendant to spreading, subterete, not compressed, with 7–9 glumes, the upper 2 larger glumes each subtending a flower, lower flower male, sterile, upper bisexual, fertile, lower 5–7 glumes empty, glumes distichous, membranous, lower glumes caducous, lowest glume 2.5 mm long, upper glumes 5–6 mm long, 1.8–2.6 mm wide, hispidulous when young, glabrescent, lanceolate, cuspidate, keeled; rachilla elongated and incurved to sinuous between the two flowers, in fruiting spikelets flattened, 3-ribbed. Perianth segments present, bristles (6–)7–8, flattened, long plumose, 5–6 mm long, c. 3 times as long as the nutlet. Stamens 3; anther connective 4–6 mm long, white, drying dark purple, subulate; anthers c. 3 mm long, linear-oblong, base auriculate, with a scabrous apical appendage up to 0.8 mm long. Style 3-fid, base 5–6 mm long, glabrous, thin throughout, branches 5–7 mm long, hispidulous. Nutlet sessile, subovoid, subterete but somewhat trigonous, with 3 longitudinal ribs, maturing dark brown, apex brown, smooth, 1.5–1.7 mm long including the style base, c. 1 mm diam., mesocarp smooth, epidermal cells square–hexagonal, but inconspicuous; style base only slightly thickened, persistent, hispidulous, c. 0.3 mm long; embryo not examined. Photosynthetic pathway not examined. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Xyroschoenus hornei (C.B.Clarke) Larridon. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681961 on 2025-09-13
Date
action
by
2024-12-10 11:47:54Z
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db_admin
The webpage text is licensed under a Creative Commons
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Nomenclature
original description
(of Schoenus hornei C.B.Clarke) Clarke, C. B. (1894). Cyperaceae. In: Durand, T.; Schinz, H. (eds.), Conspectus floræ Africæ, ou Énumération des plantes d'Afrique. Vol. V, pp. 526-692. Jardin Botanique de l´etat, Bruxelles., available online at https://www.biodiversitylibrary.org/page/29403422
page(s): 657 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 657 [details]
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
From editor or global species database
Description Perennial tufted herbs, 0.9–1.5(–2) m high; plants clonal, 0.3–1 m across; rhizome thick, woody, short, branched, 20–50 mm diam., not pseudobulbous, ultimately forming an erect caudex; old leaf sheaths covering the rhizome, sometimes breaking apart into fibres with age, reddish brown to dark brown; roots not sand-binding. Culms (above rosette) stout, erect, with 5–10 leafy nodes, obtusely trigonous, 3–9 mm diam., green, smooth, glabrous, base not enlarged. Leaves mostly basal, numerous, and 5–10 cauline; phyllotaxy loosely spirotristichous, sheath glabrous, open, 30–60 mm long, 20–30 mm wide, broader than the leaf lamina, brown, upper margin not membranous, ligule absent; basal leaves 50–90 cm long, (5–)10–15 mm wide, lamina dorsiventral, ± linear, coriaceous, curved, finely multi-striate, scabrid below on acute midrib, yellow-green, green, or sometimes dark green, slightly paler below, margins harshly scabrous to denticulate, sometimes splitting into fibres with age, revolute with age, apex gradually attenuate; cauline leaf lamina 20–50 cm long. Inflorescence open, panicle-like, spreading, lanceolate to ovate, 45–60 cm long, 10–55 cm wide, with 8–12 fertile nodes; axis green; bracts leaf-like, coriaceous, smooth, with reddish brown sheaths 20–25 mm long, becoming progressively smaller up the culm, shorter than the branchlets, basal bract usually much shorter than inflorescence; branchlets numerous, 8–25 cm long, arcuate downwards, solitary in lower part of inflorescence, the upper ones in groups of 4 or 5, arising in each bract axil, greatly exceeding the bract sheath; spikelets solitary on peduncles 3–8 mm long; spikelet prophyll subtending each spikelet glume-like, sheath 1.5–2.2 mm long, brown, partially enclosing the spikelet, with a slender lamina 3.1–4.5 mm long, brown. Spikelets very numerous, brown to dark brown, oblate to lanceolate, 5–8 mm long, 1.5–2 mm diam., acute, pendant to spreading, subterete, not compressed, with 7–9 glumes, the upper 2 larger glumes each subtending a flower, lower flower male, sterile, upper bisexual, fertile, lower 5–7 glumes empty, glumes distichous, membranous, lower glumes caducous, lowest glume 2.5 mm long, upper glumes 5–6 mm long, 1.8–2.6 mm wide, hispidulous when young, glabrescent, lanceolate, cuspidate, keeled; rachilla elongated and incurved to sinuous between the two flowers, in fruiting spikelets flattened, 3-ribbed. Perianth segments present, bristles (6–)7–8, flattened, long plumose, 5–6 mm long, c. 3 times as long as the nutlet. Stamens 3; anther connective 4–6 mm long, white, drying dark purple, subulate; anthers c. 3 mm long, linear-oblong, base auriculate, with a scabrous apical appendage up to 0.8 mm long. Style 3-fid, base 5–6 mm long, glabrous, thin throughout, branches 5–7 mm long, hispidulous. Nutlet sessile, subovoid, subterete but somewhat trigonous, with 3 longitudinal ribs, maturing dark brown, apex brown, smooth, 1.5–1.7 mm long including the style base, c. 1 mm diam., mesocarp smooth, epidermal cells square–hexagonal, but inconspicuous; style base only slightly thickened, persistent, hispidulous, c. 0.3 mm long; embryo not examined. Photosynthetic pathway not examined. [details]
To Biodiversity Heritage Library (1 publication)
To Biodiversity Heritage Library (1 publication) (from synonym Tetraria hornei (C.B.Clarke) T.Koyama)
To Biodiversity Heritage Library (1 publication) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To Biodiversity Heritage Library (1 publication) (from synonym Costularia hornei var. rectirhachilloidea Kük.)
To Biodiversity Heritage Library (2 publications) (from synonym Schoenus hornei C.B.Clarke)
To Biodiversity Heritage Library (3 publications) (from synonym Lophoschoenus hornei (C.B.Clarke) Stapf)
To European Nucleotide Archive, ENA (Costularia hornei) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To GenBank (2 nucleotides; 0 proteins) (from synonym Schoenus hornei C.B.Clarke)
To GenBank (2 nucleotides; 0 proteins) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To International Plant Names Index (IPNI) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To International Plant Names Index (IPNI) (from synonym Tetraria hornei (C.B.Clarke) T.Koyama)
To International Plant Names Index (IPNI) (from synonym Lophoschoenus hornei (C.B.Clarke) Stapf)
To International Plant Names Index (IPNI) (from synonym Schoenus hornei C.B.Clarke)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Costularia hornei var. rectirhachilloidea Kük.)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Lophoschoenus hornei (C.B.Clarke) Stapf)
To Plants of the World Online
To Plants of the World Online (from synonym Schoenus hornei C.B.Clarke)
To Plants of the World Online (from synonym Tetraria hornei (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Costularia hornei (C.B.Clarke) Kük.)
To Plants of the World Online (from synonym Costularia hornei var. rectirhachilloidea Kük.)
To Biodiversity Heritage Library (1 publication) (from synonym Tetraria hornei (C.B.Clarke) T.Koyama)
To Biodiversity Heritage Library (1 publication) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To Biodiversity Heritage Library (1 publication) (from synonym Costularia hornei var. rectirhachilloidea Kük.)
To Biodiversity Heritage Library (2 publications) (from synonym Schoenus hornei C.B.Clarke)
To Biodiversity Heritage Library (3 publications) (from synonym Lophoschoenus hornei (C.B.Clarke) Stapf)
To European Nucleotide Archive, ENA (Costularia hornei) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To GenBank (2 nucleotides; 0 proteins) (from synonym Schoenus hornei C.B.Clarke)
To GenBank (2 nucleotides; 0 proteins) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To International Plant Names Index (IPNI) (from synonym Costularia hornei (C.B.Clarke) Kük.)
To International Plant Names Index (IPNI) (from synonym Tetraria hornei (C.B.Clarke) T.Koyama)
To International Plant Names Index (IPNI) (from synonym Lophoschoenus hornei (C.B.Clarke) Stapf)
To International Plant Names Index (IPNI) (from synonym Schoenus hornei C.B.Clarke)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Costularia hornei var. rectirhachilloidea Kük.)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Lophoschoenus hornei (C.B.Clarke) Stapf)
To Plants of the World Online
To Plants of the World Online (from synonym Schoenus hornei C.B.Clarke)
To Plants of the World Online (from synonym Tetraria hornei (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Costularia hornei (C.B.Clarke) Kük.)
To Plants of the World Online (from synonym Costularia hornei var. rectirhachilloidea Kük.)
