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Cyperaceae taxon details

Rhynchospora colorata (L.) H.Pfeiff.

1491868  (urn:lsid:marinespecies.org:taxname:1491868)

accepted
Species
terrestrial
(of Schoenus coloratus L.) Linnaeus, C. (1753). Species plantarum, exhibentes plantas rite cognitas ad genera relatas cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol 1. Salvius, Stockholm., available online at https://www.biodiversitylibrary.org/page/358012
page(s): 43 [details] 
Description Plants perennial, cespitose or solitary, to 70 cm; rhizomes slender, scaly, to 2 mm thick. Culms erect, slender,...  
Description Plants perennial, cespitose or solitary, to 70 cm; rhizomes slender, scaly, to 2 mm thick. Culms erect, slender, leafy-based, trigonous, several-ribbed. Leaves spreading to erect, overtopped by culm; blades narrowly linear, proximally flattened, 0.5–3 mm wide, apex tapering, trigonous. Inflorescences terminal, solitary, headlike, dense, white, leafy-involucrate; involucral bracts several, flaring to recurved, white from broadened base nearly to median, then green to tapered tip, longer bracts 13 cm × 2–7 mm. Spikelets white, ovoid, 5–7 mm, apex acute; fertile scales many, boatshaped, sharply curvedkeeled, 3–4(–5) mm, apex acute or blunt. Flowers: perianth absent. Fruits several per spikelet, 1.5–1.7(–2) mm; body yellow to mahogany, broadly pyriformobovoid, tumidly lenticular, 1 × 0.5–0.7 mm, widest at apex, margins thickened, interrupted at base of tubercle; surfaces transversely undulaterugose, ridges contiguous, of shortlinear papillae; tubercle broadly triangular, 0.5–0.6 mm, graycrustaceous, apex short acuminate. 2n = 12. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Repert. Spec. Nov. Regni Veg. 38: 89, in adnot. 1935 to Repert. Spec....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Repert. Spec. Nov. Regni Veg. 38: 89, in adnot. 1935 to Repert. Spec. Nov. Regni Veg. 38: 89 (1935), 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 colorata (L.) H.Pfeiff.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1491868 on 2025-09-12
Date
action
by
2021-03-16 12:37:04Z
created
db_admin
2023-09-05 06:47:53Z
changed
2024-12-10 11:47:54Z
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2025-09-02 07:51:11Z
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Nomenclature

original description (of Schoenus coloratus L.) Linnaeus, C. (1753). Species plantarum, exhibentes plantas rite cognitas ad genera relatas cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol 1. Salvius, Stockholm., available online at https://www.biodiversitylibrary.org/page/358012
page(s): 43 [details] 

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

new combination reference (1935). Repertorium specierum novarum regni vegetabilis. 38.
page(s): 89 [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Isotype (of Dichromena drummondiana Steud.) G 00191928, geounit Louisiana [details]
From editor or global species database
Description Plants perennial, cespitose or solitary, to 70 cm; rhizomes slender, scaly, to 2 mm thick. Culms erect, slender, leafy-based, trigonous, several-ribbed. Leaves spreading to erect, overtopped by culm; blades narrowly linear, proximally flattened, 0.5–3 mm wide, apex tapering, trigonous. Inflorescences terminal, solitary, headlike, dense, white, leafy-involucrate; involucral bracts several, flaring to recurved, white from broadened base nearly to median, then green to tapered tip, longer bracts 13 cm × 2–7 mm. Spikelets white, ovoid, 5–7 mm, apex acute; fertile scales many, boatshaped, sharply curvedkeeled, 3–4(–5) mm, apex acute or blunt. Flowers: perianth absent. Fruits several per spikelet, 1.5–1.7(–2) mm; body yellow to mahogany, broadly pyriformobovoid, tumidly lenticular, 1 × 0.5–0.7 mm, widest at apex, margins thickened, interrupted at base of tubercle; surfaces transversely undulaterugose, ridges contiguous, of shortlinear papillae; tubercle broadly triangular, 0.5–0.6 mm, graycrustaceous, apex short acuminate. 2n = 12. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Repert. Spec. Nov. Regni Veg. 38: 89, in adnot. 1935 to Repert. Spec. Nov. Regni Veg. 38: 89 (1935), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
    Definitions

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LanguageName 
English white-headed rush  [details]