Cyperaceae taxon details
Cyperus drummondii Torr. & Hook.
1680749 (urn:lsid:marinespecies.org:taxname:1680749)
accepted
Species
Cyperus robustus Kunth · unaccepted
Cyperus virens var. drummondii (Torr. & Hook.) Kük. · unaccepted
Cyperus virens var. robustus (Kunth) Kük. · unaccepted
terrestrial
Not documented
Description Herbs, perennial, cespitose; rhizomes 0.5–2 cm, often absent. Culms trigonous, 35–170 cm × 2–4.7 mm, scabrid on...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 437 1836 to Ann. Lyceum Nat. Hist....
Description Herbs, perennial, cespitose; rhizomes 0.5–2 cm, often absent. Culms trigonous, 35–170 cm × 2–4.7 mm, scabrid on angles. Leaves 4–12, with readily visible cross ribs especially on abaxial surface, flat to V-shaped, 25–100 cm × 2.4–11 mm. Inflorescences: heads digitate, globose, 1–1.7 cm diam.; rays 3–5, 1–7 cm; 2d order rays absent; bracts 3–5, horizontal to ascending at 30°, with prominent cross ribs, V-shaped, (4–)11–35(–48) cm × 1–6.7 mm (longest 1/2 as long as culm); 2d order bracts absent. Spikelets 10–40, oblong to linear-lanceoloid, 5–1.8 × 1.5–2.2 mm; floral scales 18–42, pale grayish green, turning brownish, proximally greenish or brownish, 2-keeled, weakly to distinctly 1-ribbed, proximal 1/2 2-ribbed, ovate, 1.4–1.6 × 0.9–1.4 mm, acute (sometimes mucronulate), apically glabrous, occasionally scabridulous. Flowers: stamens 1–2; anthers 0.8–1.2 mm; styles 0.8–1 mm; stigmas 0.6–0.8 mm. Achenes brown, slightly stipitate, oblong-ellipsoid (2.4–3.9 times longer than wide), 1–1.2 × 0.3–0.5 mm, apical beak 0.1–0.5 mm, surfaces glabrous. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 437 1836 to Ann. Lyceum Nat. Hist....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 437 1836 to Ann. Lyceum Nat. Hist. New York 3: 437 (1836), 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. Cyperus drummondii Torr. & Hook.. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1680749 on 2026-09-23
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2024-12-10 11:47:54Z
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The webpage text is licensed under a Creative Commons
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Nomenclature
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 Herbs, perennial, cespitose; rhizomes 0.5–2 cm, often absent. Culms trigonous, 35–170 cm × 2–4.7 mm, scabrid on angles. Leaves 4–12, with readily visible cross ribs especially on abaxial surface, flat to V-shaped, 25–100 cm × 2.4–11 mm. Inflorescences: heads digitate, globose, 1–1.7 cm diam.; rays 3–5, 1–7 cm; 2d order rays absent; bracts 3–5, horizontal to ascending at 30°, with prominent cross ribs, V-shaped, (4–)11–35(–48) cm × 1–6.7 mm (longest 1/2 as long as culm); 2d order bracts absent. Spikelets 10–40, oblong to linear-lanceoloid, 5–1.8 × 1.5–2.2 mm; floral scales 18–42, pale grayish green, turning brownish, proximally greenish or brownish, 2-keeled, weakly to distinctly 1-ribbed, proximal 1/2 2-ribbed, ovate, 1.4–1.6 × 0.9–1.4 mm, acute (sometimes mucronulate), apically glabrous, occasionally scabridulous. Flowers: stamens 1–2; anthers 0.8–1.2 mm; styles 0.8–1 mm; stigmas 0.6–0.8 mm. Achenes brown, slightly stipitate, oblong-ellipsoid (2.4–3.9 times longer than wide), 1–1.2 × 0.3–0.5 mm, apical beak 0.1–0.5 mm, surfaces glabrous. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 437 1836 to Ann. Lyceum Nat. Hist. New York 3: 437 (1836), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (1 publication) (from synonym Cyperus virens var. drummondii (Torr. & Hook.) Kük.)
To Biodiversity Heritage Library (10 publications)
To Biodiversity Heritage Library (8 publications) (from synonym Cyperus robustus Kunth)
To International Plant Names Index (IPNI) (from synonym Cyperus virens subsp. drummondii (Torr. & Hook.) T.Koyama)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Cyperus robustus Kunth)
To International Plant Names Index (IPNI) (from synonym Cyperus virens var. drummondii (Torr. & Hook.) Kük.)
To International Plant Names Index (IPNI) (from synonym Cyperus virens var. robustus (Kunth) Kük.)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Cyperus robustus Kunth)
To Plants of the World Online
To Plants of the World Online (from synonym Cyperus virens var. drummondii (Torr. & Hook.) Kük.)
To Plants of the World Online (from synonym Cyperus virens subsp. drummondii (Torr. & Hook.) T.Koyama)
To Plants of the World Online (from synonym Cyperus virens var. robustus (Kunth) Kük.)
To Biodiversity Heritage Library (10 publications)
To Biodiversity Heritage Library (8 publications) (from synonym Cyperus robustus Kunth)
To International Plant Names Index (IPNI) (from synonym Cyperus virens subsp. drummondii (Torr. & Hook.) T.Koyama)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Cyperus robustus Kunth)
To International Plant Names Index (IPNI) (from synonym Cyperus virens var. drummondii (Torr. & Hook.) Kük.)
To International Plant Names Index (IPNI) (from synonym Cyperus virens var. robustus (Kunth) Kük.)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Cyperus robustus Kunth)
To Plants of the World Online
To Plants of the World Online (from synonym Cyperus virens var. drummondii (Torr. & Hook.) Kük.)
To Plants of the World Online (from synonym Cyperus virens subsp. drummondii (Torr. & Hook.) T.Koyama)
To Plants of the World Online (from synonym Cyperus virens var. robustus (Kunth) Kük.)
