svg-backdrop

Cyperaceae taxon details

Rhynchospora chapmanii M.A.Curtis

1679532  (urn:lsid:marinespecies.org:taxname:1679532)

accepted
Species

Ordering

  • Alphabetically
  • By status

Children Display

terrestrial
Curtis, M. A. (1849). New and rare plants, chiefly of the Carolinas. <em>American Journal of Science, and Arts.</em> ser 2, 7: 406-410., available online at https://www.biodiversitylibrary.org/page/27762895
page(s): 409 [details] 
Description Plants perennial, densely cespitose, 30–50(–70) cm; rhizomes absent. Culms erect to excurved, filiform, leafy, stiff to...  
Description Plants perennial, densely cespitose, 30–50(–70) cm; rhizomes absent. Culms erect to excurved, filiform, leafy, stiff to lax. Leaves mostly slightly exceeded by culm; blades ± filiform, proximally flat to concave, distally tapering, to 1 mm wide, margins involute, apex trigonous, subulate. Inflorescences terminal; spikelet clusters 1(–2), dense, broadly turbinate to hemispheric; longer leafy bracts 1–2(–several), setaceous, overtopping inflorescence. Spikelets light brown, narrowly ovoid, 2–2.5(–3) mm, apex acute or acuminate; fertile scales 1.5–2(–2.5) mm, apex acute, midrib excurrent as cusp or awn 0.5–0.9 mm. Flowers: bristles absent, rarely reduced to nubbins, or rarely 1, then shorter than fruit body. Fruits 1 per spikelet, 1–1.8 mm; body with dark brown ends, broad pale midzone, lenticular, ± orbicular, 1–1.2 × 0.8–1 mm, surfaces smooth; margins sharp, flowing to tubercle; tubercle lowtriangular, 0.2–0.3(–0.5) mm, sometimes apiculate. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Amer. J. Sci. Arts II, 7: 409 1849 to Amer. J. Sci. Arts , ser. 2, 7:...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Amer. J. Sci. Arts II, 7: 409 1849 to Amer. J. Sci. Arts , ser. 2, 7: 409 (1849), 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 chapmanii M.A.Curtis. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679532 on 2025-09-14
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-09-02 07:51:11Z
checked

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


Nomenclature

original description Curtis, M. A. (1849). New and rare plants, chiefly of the Carolinas. <em>American Journal of Science, and Arts.</em> ser 2, 7: 406-410., available online at https://www.biodiversitylibrary.org/page/27762895
page(s): 409 [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 
   

Isotype P 00264688, geounit Florida [details]
Syntype NY 00051376, geounit Florida [details]
From editor or global species database
Description Plants perennial, densely cespitose, 30–50(–70) cm; rhizomes absent. Culms erect to excurved, filiform, leafy, stiff to lax. Leaves mostly slightly exceeded by culm; blades ± filiform, proximally flat to concave, distally tapering, to 1 mm wide, margins involute, apex trigonous, subulate. Inflorescences terminal; spikelet clusters 1(–2), dense, broadly turbinate to hemispheric; longer leafy bracts 1–2(–several), setaceous, overtopping inflorescence. Spikelets light brown, narrowly ovoid, 2–2.5(–3) mm, apex acute or acuminate; fertile scales 1.5–2(–2.5) mm, apex acute, midrib excurrent as cusp or awn 0.5–0.9 mm. Flowers: bristles absent, rarely reduced to nubbins, or rarely 1, then shorter than fruit body. Fruits 1 per spikelet, 1–1.8 mm; body with dark brown ends, broad pale midzone, lenticular, ± orbicular, 1–1.2 × 0.8–1 mm, surfaces smooth; margins sharp, flowing to tubercle; tubercle lowtriangular, 0.2–0.3(–0.5) mm, sometimes apiculate. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Amer. J. Sci. Arts II, 7: 409 1849 to Amer. J. Sci. Arts , ser. 2, 7: 409 (1849), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]