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Cyperaceae taxon details

Diplacrum caricinum R.Br.

To iNaturalist (Diplacrum caricinum China 1)
To iNaturalist (Diplacrum caricinum China 1)

1680982  (urn:lsid:marinespecies.org:taxname:1680982)

  1. Biota
  2. Plantae (Kingdom)
  3. Viridiplantae (Subkingdom)
  4. Streptophyta (Infrakingdom)
  5. Tracheophyta (Phylum (Division))
  6. Spermatophytina (Subphylum (Subdivision))
  7. Magnoliopsida (Class)
  8. Lilianae (Superorder)
  9. Poales (Order)
  10. Cyperaceae (Family)
  11. Bisboeckelereae (Tribe)
  12. Diplacrum (Genus)
  13. Diplacrum caricinum (Species)
accepted
Species

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marine, brackish, fresh, terrestrial
Brown, R. (1810). Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805 per oras utriusque insulae collegit et descripsit Robertus Brown; insertis passim aliis speciebus auctori hucusque cognitis, seu evulgatis, seu ineditis, praesertim Banksianis, in primo itinere navarchi Cook detectis. Vol. 1 pp. [i]-viii, 145-590 p., [1] h. ["Addenda"]. Londini [London]: typis Richardi Taylori et Scoii. Veneunt apud J. Johnson et Socios, in Caementerio Sancti Pauli., available online at https://www.biodiversitylibrary.org/page/6157371
page(s): 241 [details] 
Description Dwarf herbaceous annual, glabrous, (3–)5–35 cm high, with reddish fibrous roots. Culms tufted, more or less erect or...  
Description Dwarf herbaceous annual, glabrous, (3–)5–35 cm high, with reddish fibrous roots. Culms tufted, more or less erect or spreading. Leaves much shorter than inflorescences; leaf blades flat, with mid-nerve prominent abaxially, glabrous, 2–5 mm wide at mid-length, margins with minute antrorsely aculeate prickle hairs towards apex, with mid-nerve and numerous finer lateral nerves prominent on abaxial surface, several nerves prominent adaxially; no ligule or contraligule (the top of the leaf sheath opposite the junction with the blade truncate, not thickened); sheaths often reddish at the base. Inflorescence much longer than the culms, with inter-nodes ~8–20 mm long, composed of 3–14 remote axillary clusters of spikelets; each cluster usually with 1 or 2 basal male spikelets and an upper female spikelet. Involucral bract at each node leaf-like, shorter than the inflorescence. Male spikelets 0.7–2.0 mm long, with 1 slender, more or less hyaline glume 0.7–2.0 mm long, not indurated at maturity; stamen 1; anther 0.2–0.5 mm long, with apical appendage <0.1 mm long. Female spikelets 0.7–2.8 mm long, with 2 glumes encircling the ovary and tightly clasping the nutlet and falling with it at maturity; peduncle thickened and disc- like at apical abscission zone but not enlarged and cup-like at maturity; glumes with narrow hyaline margins, 0.7–2.7 mm long including short erect (becoming incurved over nutlet at maturity) awn 0.2–0.5(–0.8) mm long, 3–9(–11)-nerved (usually only inner 3 prominent, elliptical with broad–acute to obtuse apex, with minute lateral lobes (extension of the hyaline margin on each side of the awn), green turning straw-coloured with maturity. Disc trigonous to subcircular, off-white, adhering to nutlet. Style 3-fid. Nutlet globose to broad–ovoid, circular to subtrigonous in cross-section, sparsely white-hispidulous at apex, otherwise glabrous, glossy, off-white to dark greyish, with 3 prominent paler ribs, 0.7–1.1 mm long, 0.5–0.7 mm in diameter, faintly and irregularly longitudinally rugose-ridged; somewhat tuberculate on ridges. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Prodr. Fl. Nov. Holl. 241 1810 to Prodr. Fl. Nov. Holland. : 241...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Prodr. Fl. Nov. Holl. 241 1810 to Prodr. Fl. Nov. Holland. : 241 (1810), 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. Diplacrum caricinum R.Br.. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1680982 on 2025-09-11
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin
2024-12-26 08:33:32Z
checked
Sanz Arnal, María

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Nomenclature

original description Brown, R. (1810). Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805 per oras utriusque insulae collegit et descripsit Robertus Brown; insertis passim aliis speciebus auctori hucusque cognitis, seu evulgatis, seu ineditis, praesertim Banksianis, in primo itinere navarchi Cook detectis. Vol. 1 pp. [i]-viii, 145-590 p., [1] h. ["Addenda"]. Londini [London]: typis Richardi Taylori et Scoii. Veneunt apud J. Johnson et Socios, in Caementerio Sancti Pauli., available online at https://www.biodiversitylibrary.org/page/6157371
page(s): 241 [details] 

original description (of Diplacrum tridentatum Brongn.) Brongniart, A. (1833). Voyage autour du Monde, Botanique, Atlas, Phanérogames. <em>In: Duperrey, L.I. (ed).</em> t. 26., available online at https://www.biodiversitylibrary.org/page/10005197 [details] 

original description (of Diplacrum zeylanicum Nees) Nees, C.G.D. (1834). Cyperaceae Indicae. <em>In Wight, R. (ed). Contributions to the Botany of India (Compositae, Asclepiadaceae and Cyperaceae).</em> No. III. Parburry, Allen & co., London.
page(s): 119 [details] OpenAccess publication

original description (of Scleria axillaris Moon) Moon, A. (1824). Catalogue of the indigenous and exotic Plants growing in Ceylon: distinguishing the several esculent vegetables, fruits, roots and grains ; together with a sketch of the divisions of genera and species in use amongst the Singhalese. Also an outline of the Linnaean sexual system of botany in the English and Singhalese languages. <em>Wsleyan Mission Press, Colombo.</em> pp. 62., available online at https://ia600906.us.archive.org/34/items/acatalogueindig00moongoog/acatalogueindig00moongoog.pdf [details] 

original description (of Diplacrum caricinum var. sumatranum Miq.) Miquel, F.A.W. (1861). Flora van Nederlandsch Indie, Eerste Bijvoegsel. 602., available online at https://www.biodiversitylibrary.org/page/4746284 [details] 

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

Other

additional source Koyama, T. (1967). The systematic significance of leaf structure in the tribe Sclerieae (Cyperaceae). <em>Memoirs of the New York Botanical Garden.</em> 16: 46-70.
page(s): 50 [details] Available for editors  PDF available [request]

additional source Ohwi, J. (1936). Symbolae ad Floram Asiae Orientalis 14. <em>Acta Phytotaxonomica et Geobotanica.</em> 5(3): 179-188.
page(s): 184 [details] Available for editors  PDF available [request]

additional source Li, B. Z.; Zhang, S. R. (2024). An updated species checklist and taxonomic synopsis of Cyperaceae in China. <em>Biodiversity Science.</em> 32(7): 24106., available online at https://doi.org/10.17520/biods.2024106 [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Unknown type (of Diplacrum tridentatum Brongn.) P, geounit Maluku [details]
From editor or global species database
Description Dwarf herbaceous annual, glabrous, (3–)5–35 cm high, with reddish fibrous roots. Culms tufted, more or less erect or spreading. Leaves much shorter than inflorescences; leaf blades flat, with mid-nerve prominent abaxially, glabrous, 2–5 mm wide at mid-length, margins with minute antrorsely aculeate prickle hairs towards apex, with mid-nerve and numerous finer lateral nerves prominent on abaxial surface, several nerves prominent adaxially; no ligule or contraligule (the top of the leaf sheath opposite the junction with the blade truncate, not thickened); sheaths often reddish at the base. Inflorescence much longer than the culms, with inter-nodes ~8–20 mm long, composed of 3–14 remote axillary clusters of spikelets; each cluster usually with 1 or 2 basal male spikelets and an upper female spikelet. Involucral bract at each node leaf-like, shorter than the inflorescence. Male spikelets 0.7–2.0 mm long, with 1 slender, more or less hyaline glume 0.7–2.0 mm long, not indurated at maturity; stamen 1; anther 0.2–0.5 mm long, with apical appendage <0.1 mm long. Female spikelets 0.7–2.8 mm long, with 2 glumes encircling the ovary and tightly clasping the nutlet and falling with it at maturity; peduncle thickened and disc- like at apical abscission zone but not enlarged and cup-like at maturity; glumes with narrow hyaline margins, 0.7–2.7 mm long including short erect (becoming incurved over nutlet at maturity) awn 0.2–0.5(–0.8) mm long, 3–9(–11)-nerved (usually only inner 3 prominent, elliptical with broad–acute to obtuse apex, with minute lateral lobes (extension of the hyaline margin on each side of the awn), green turning straw-coloured with maturity. Disc trigonous to subcircular, off-white, adhering to nutlet. Style 3-fid. Nutlet globose to broad–ovoid, circular to subtrigonous in cross-section, sparsely white-hispidulous at apex, otherwise glabrous, glossy, off-white to dark greyish, with 3 prominent paler ribs, 0.7–1.1 mm long, 0.5–0.7 mm in diameter, faintly and irregularly longitudinally rugose-ridged; somewhat tuberculate on ridges. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Prodr. Fl. Nov. Holl. 241 1810 to Prodr. Fl. Nov. Holland. : 241 (1810), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (13 publications) (from synonym Diplacrum tridentatum Brongn.)
To Biodiversity Heritage Library (4 publications) (from synonym Scleria axillaris Moon)
To Biodiversity Heritage Library (40 publications) (from synonym Scleria caricina (R.Br.) Benth.)
To Biodiversity Heritage Library (5 publications) (from synonym Scleria onoei Makino)
To Biodiversity Heritage Library (7 publications) (from synonym Diplacrum zeylanicum Nees)
To Biodiversity Heritage Library (76 publications) 
To European Nucleotide Archive, ENA (Diplacrum caricinum) 
To GenBank (8 nucleotides; 4 proteins) 
To iNaturalist (Diplacrum caricinum China 1) 
To iNaturalist (Diplacrum caricinum Japan 1) 
To iNaturalist (Inflorescence of Diplacrum caricinum China 2) 
To iNaturalist (Inflorescence of Diplacrum caricinum South Korea 1) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Diplacrum tridentatum Brongn.)
To International Plant Names Index (IPNI) (from synonym Scleria caricina (R.Br.) Benth.)
To International Plant Names Index (IPNI) (from synonym Diplacrum zeylanicum Nees)
To International Plant Names Index (IPNI) (from synonym Scleria axillaris Moon)
To International Plant Names Index (IPNI) (from synonym Diplacrum caricinum var. sumatranum Miq.)
To IUCN Red List (Least Concern) 
To Plants of the World Online 
To Plants of the World Online (from synonym Diplacrum tridentatum Brongn.)
To Plants of the World Online (from synonym Scleria axillaris Moon)
To Plants of the World Online (from synonym Diplacrum zeylanicum Nees)
To Plants of the World Online (from synonym Scleria caricina (R.Br.) Benth.)
To Plants of the World Online (from synonym Diplacrum caricinum var. sumatranum Miq.)
To the Natural History Museum, London (Scleria caricina (R.Br.) Benth. BM000833639 type 1) (from synonym Scleria caricina (R.Br.) Benth.)
To The Plant List (from synonym Scleria onoei Makino)
From editor or global species database
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