Cyperaceae taxon details
Rhynchospora rupestris A.C.Araújo & W.W.Thomas
1681229 (urn:lsid:marinespecies.org:taxname:1681229)
accepted
Species
terrestrial
Araújo, A. C.; Longhi-Wagner, H. M.; Thomas, W. W.; Simpson, D. A. (2008). Taxonomic novelties in Rhynchospora (Cyperaceae) from South America. Kew Bulletin, 63(2): 301-307., available online at https://doi.org/10.1007/s12225-008-9035-9
page(s): 306 [details] Available for editors
[request]
page(s): 306 [details] Available for editors
[request]
Holotype CEPEC
, geounit Bahia
, geounit Bahia
Holotype CEPEC
, geounit Bahia [details]
, geounit Bahia [details]
Description Plants 30– 60cmtall, caespitose with knotted rhizomes, the knots (8–)10– 15 mm wide. Culms 1– 1.3 mm wide,...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Kew Bull. 63(2): 306 (fig. 3). 2008 [30 Sep 2008] to Kew Bull. 63:...
Description Plants 30– 60cmtall, caespitose with knotted rhizomes, the knots (8–)10– 15 mm wide. Culms 1– 1.3 mm wide, trigonous, glabrous. Leaves 4– 6, basal; sheaths 2– 4 cm long, glabrous; blades (15–)20– 35 cm × (1.2–) 1.5– 2.5 mm, ½ the height of the culm or slightly longer, linear-lanceolate, symmetrical, conduplicate, glabrous, the margins scabrous. Inflorescence capitate, subtended by 3 (4) involucral bracts; involucral bracts foliar, basally white and ovate, distally green and linear-lanceolate, flat, hartaceous, the apex acuminate; basal bract (4–) 7– 11.7 cm long, the white portion 0.4– 0.7 cm × 4– 8 mm, the green portion (4–)7– 11 cm × 1– 2 mm, margins scabrous or hairy; second bract (2.5–)4– 8.5 cm long. Capitula 7–10 ×10–15mm,globose. Spikelets 30– 70 with 45.5 × 1– 1.6 mm, ovate-lanceolate, the basal 3 glumes empty, followed by a single scale subtending a perfect flower and 5– 7 distal glumes subtending staminate flowers; distal empty scale 1.5– 2.5 × 0.6– 1mm, lanceolate, off-white, glabrous, the apex acute; scale of the perfect flower 3– 4 × 1.5– 2.2 mm, ovatelanceolate, white to pale- like, sometimes castaneous at the base, chartaceous, scabrous, the apex acute; glumes of staminate flowers stramineous, the basal one chartaceous, the others membranous. Perianth bristles absent. Anthers 2, 1.5 mm long. Nutlets 1.2– 2 × 0.8– 1 (– 1.4) mm, obovate, biconvex, ochre-coloured or grey, the surface tuberculate, the margins not prominent, straight; style base 0.2– 0.4 (– 0.7) × 0.2– 0.4 mm, conical, not decurrent, confluent along the margins of the nutlet. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Kew Bull. 63(2): 306 (fig. 3). 2008 [30 Sep 2008] to Kew Bull. 63:...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Kew Bull. 63(2): 306 (fig. 3). 2008 [30 Sep 2008] to Kew Bull. 63: 306 (2008), 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. Rhynchospora rupestris A.C.Araújo & W.W.Thomas. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681229 on 2025-09-13
Date
action
by
2024-12-10 11:47:54Z
unchecked
db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Araújo, A. C.; Longhi-Wagner, H. M.; Thomas, W. W.; Simpson, D. A. (2008). Taxonomic novelties in Rhynchospora (Cyperaceae) from South America. Kew Bulletin, 63(2): 301-307., available online at https://doi.org/10.1007/s12225-008-9035-9
page(s): 306 [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): 306 [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
From editor or global species database
Description Plants 30– 60cmtall, caespitose with knotted rhizomes, the knots (8–)10– 15 mm wide. Culms 1– 1.3 mm wide, trigonous, glabrous. Leaves 4– 6, basal; sheaths 2– 4 cm long, glabrous; blades (15–)20– 35 cm × (1.2–) 1.5– 2.5 mm, ½ the height of the culm or slightly longer, linear-lanceolate, symmetrical, conduplicate, glabrous, the margins scabrous. Inflorescence capitate, subtended by 3 (4) involucral bracts; involucral bracts foliar, basally white and ovate, distally green and linear-lanceolate, flat, hartaceous, the apex acuminate; basal bract (4–) 7– 11.7 cm long, the white portion 0.4– 0.7 cm × 4– 8 mm, the green portion (4–)7– 11 cm × 1– 2 mm, margins scabrous or hairy; second bract (2.5–)4– 8.5 cm long. Capitula 7–10 ×10–15mm,globose. Spikelets 30– 70 with 45.5 × 1– 1.6 mm, ovate-lanceolate, the basal 3 glumes empty, followed by a single scale subtending a perfect flower and 5– 7 distal glumes subtending staminate flowers; distal empty scale 1.5– 2.5 × 0.6– 1mm, lanceolate, off-white, glabrous, the apex acute; scale of the perfect flower 3– 4 × 1.5– 2.2 mm, ovatelanceolate, white to pale- like, sometimes castaneous at the base, chartaceous, scabrous, the apex acute; glumes of staminate flowers stramineous, the basal one chartaceous, the others membranous. Perianth bristles absent. Anthers 2, 1.5 mm long. Nutlets 1.2– 2 × 0.8– 1 (– 1.4) mm, obovate, biconvex, ochre-coloured or grey, the surface tuberculate, the margins not prominent, straight; style base 0.2– 0.4 (– 0.7) × 0.2– 0.4 mm, conical, not decurrent, confluent along the margins of the nutlet. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Kew Bull. 63(2): 306 (fig. 3). 2008 [30 Sep 2008] to Kew Bull. 63: 306 (2008), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (1 publication)
To Genève Herbarium (Rhynchospora rupestris G00034260 isotype 1)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Genève Herbarium (Rhynchospora rupestris G00034260 isotype 1)
To International Plant Names Index (IPNI)
To Plants of the World Online
From editor or global species database
Hosted externally
