Cyperaceae taxon details
Rhynchospora indianolensis Small
Small, J. K. (1903). Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolin, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana and the Indian territory and in Oklahoma and Texas east of the one-hundredth meridian. , available online at https://www.biodiversitylibrary.org/page/376878
page(s): 193 [details]
page(s): 193 [details]
Description Plants perennial, cespitose, to 100 cm; rhizomes absent. Culms stiffly erect or ascending, leafy-based, triangular,...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. S.E. U.S. 193 1903 to Fl. S.E. U.S. : 193 (1903), information...
Description Plants perennial, cespitose, to 100 cm; rhizomes absent. Culms stiffly erect or ascending, leafy-based, triangular, multiribbed. Leaves ascending or erect, crowded toward culm base, shorter, more widely spaced distally, longest overtopping or equaling subtended inflorescences; principal blades flat, trigonous distally, 4–6 mm wide, apex attenuate, trigonous. Inflorescences terminal and axillary, compounds of fascicles, nearly umbellate; clusters hemispheric to nearly capitate, 1.5–2 cm wide; 1 cluster nearly sessile, others on slender rays to 7 cm, sometimes penultimate node with single cluster on peduncle 7–12 cm. Spikelets light redbrown, lanceoloid, 6–7 mm, apex acute; fertile scales lance-ovate, 5 mm, apex acute to blunt, midrib shortexcurrent or not. Flowers: perianth bristles 6, overtopping tubercle base, antrorsely barbellate. Fruits 1 per spikelet, (5.5–)6–7 mm; body obovoid, 3–4 × 2–2.5 mm, margins thick, crimped, surfaces level or concave, minutely pebbled; tubercle narrowly conic, 2grooved, 3–4 mm, base blunt, stout, capping fruit apex, tip barely exserted. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. S.E. U.S. 193 1903 to Fl. S.E. U.S. : 193 (1903), information...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. S.E. U.S. 193 1903 to Fl. S.E. U.S. : 193 (1903), 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 indianolensis Small. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1691810 on 2025-09-12
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Nomenclature
original description
Small, J. K. (1903). Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolin, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana and the Indian territory and in Oklahoma and Texas east of the one-hundredth meridian. , available online at https://www.biodiversitylibrary.org/page/376878
page(s): 193 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 193 [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
Syntype NY 22789, geounit Texas [details]
From editor or global species database
Description Plants perennial, cespitose, to 100 cm; rhizomes absent. Culms stiffly erect or ascending, leafy-based, triangular, multiribbed. Leaves ascending or erect, crowded toward culm base, shorter, more widely spaced distally, longest overtopping or equaling subtended inflorescences; principal blades flat, trigonous distally, 4–6 mm wide, apex attenuate, trigonous. Inflorescences terminal and axillary, compounds of fascicles, nearly umbellate; clusters hemispheric to nearly capitate, 1.5–2 cm wide; 1 cluster nearly sessile, others on slender rays to 7 cm, sometimes penultimate node with single cluster on peduncle 7–12 cm. Spikelets light redbrown, lanceoloid, 6–7 mm, apex acute; fertile scales lance-ovate, 5 mm, apex acute to blunt, midrib shortexcurrent or not. Flowers: perianth bristles 6, overtopping tubercle base, antrorsely barbellate. Fruits 1 per spikelet, (5.5–)6–7 mm; body obovoid, 3–4 × 2–2.5 mm, margins thick, crimped, surfaces level or concave, minutely pebbled; tubercle narrowly conic, 2grooved, 3–4 mm, base blunt, stout, capping fruit apex, tip barely exserted. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. S.E. U.S. 193 1903 to Fl. S.E. U.S. : 193 (1903), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (7 publications)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Rhynchospora_indianolensis_NY22789_type_1)
To New York Botanical Garden Steere Herbarium (Rhynchospora_indianolensis_NY22789_type_2)
To Plants of the World Online
To US Herbarium (Rhynchospora indianolensis US63441 type 1)
To US Herbarium (Rhynchospora indianolensis US80236 type 1)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Rhynchospora_indianolensis_NY22789_type_1)
To New York Botanical Garden Steere Herbarium (Rhynchospora_indianolensis_NY22789_type_2)
To Plants of the World Online
To US Herbarium (Rhynchospora indianolensis US63441 type 1)
To US Herbarium (Rhynchospora indianolensis US80236 type 1)
From editor or global species database
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