Skip to main content
This species is accepted, and its native range is Tropics & Subtropics.
A specimen from Kew's Herbarium

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Robust annual with solitary stem or tufted
Morphology Stem
Stems 30–50 cm long and 1–4 mm thick, but to 8 mm thick across the sheaths, triangular, glabrous
Morphology Leaves
Leaf-blades 10–40 cm long and 3–8 mm wide, flat, rather thick and soft below, scabrid on margin and midrib near the tip; sheaths rather wide, straw-coloured to brown with transparent scarious margins
Morphology Reproductive morphology Inflorescences
Inflorescence a compound anthela of large sessile and stalked spikes; major branches to 10 cm long
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 5–10 x 1–2 mm, linear-lanceolate
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 2–3 mm long, obovate, light brown or reddish brown with a very prominent wide pale marginal border
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 branches
Morphology Reproductive morphology Fruits
Nutlet 1.5–2 x 0.7–1.2 mm, obovate to elliptic, grey, brown or blackish, minutely papillose.
Distribution
S3 pantropical.
Ecology
Altitude below 50 m.

[FWTA]

Cyperaceae, Miss S. S. Hooper. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
Rather robust annual
Morphology Leaves
Few, flaccid leaves
Morphology Reproductive morphology Inflorescences
A conspicuous spreading inflorescence
Ecology
In or near open water and other damp places.

[FTEA]

Cyperaceae, K Hoenselaar, B. Verdcourt & H. Beentje. Hypolytrum, D Simpson. Fuirena, M Muasya. Flora of Tropical East Africa. 2010

Type
Type: Africa, ‘ExAfrica’ Herb. Lamarck (P-LA, holo.)
Morphology General Habit
Robust annual, up to 100 cm high.
Morphology Culms
Culms solitary or tufted, 26–82 cm long, 1.6–6.2 mm wide, trigonous, sometimes almost triquetrous, smooth, the lower part covered by broad membranous reddish-brown leaf bases
Morphology Leaves
Leaf sheath pale brown to dark brown, 2–13 cm long, the base often reddish-purple. Leaf blade linear, 15–50 cm long, 2.6–9 mm wide, acuminate, apex scabrid Leaves up to 60 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts spreading. Leaf-like, 3–5, 12.5–58 cm long, 2.4–12 mm wide, scabrid
Morphology Reproductive morphology Inflorescences
Inflorescence simple, or sometimes ± compound.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in clusters on elongated axis at the end of primary branches, at least one cluster sessile, primary branches 2–8, 1–15.5 cm long, at the base with a conspicuous tubular, (pale) red-brown prophyll. Spikelets 10–30 up to many per cluster, linear-lanceolate, 8.7–25 mm long, sometimes elongating up to 35 mm long in fruit, 1.7–2.5 mm wide, the glumes spreading in fruit, then up to 3 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes (golden-)yellow, (golden-) brown to reddish brown, with a distinct white hyaline margin, obovate, 2–2.8 mm long, 1.1–2 mm wide, keel rounded to acute, 2–3-veined, pale green, apex obtuse to sometimes ± acute
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens (2–)3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.8–2.6 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.4–0.9 mm long
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma 2-branched
Morphology Reproductive morphology Fruits
Nutlet greyish-black, brownish-black to black, oblong to obovoid, flattened, 1.5–1.9 mm long, 0.6–1.3 mm wide, with minute papillae in longitudinal rows.
Ecology
In seasonal lakes and ponds, at river edges, sometimes in rice fields; sea-level up to 1400 m
Conservation
Least concern (LC) due to its wide distribution
Note
This species is the most robust annual in the Flora area, easy recognized by the white hyaline glume margin.
Distribution
Range: Widespread in Africa; Madagascar, (sub)tropical America Flora districts: U1 U2 U3 U4 K3 K4 K7 T1 T2 T4 T5 T6 T7 T8 Z

Native to:

Angola, Argentina Northeast, Argentina Northwest, Benin, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil West-Central, Burkina, Burundi, Cameroon, Central African Repu, Chad, Congo, Costa Rica, Ecuador, El Salvador, Ethiopia, Gambia, Ghana, Guinea, Guinea-Bissau, Honduras, India, Ivory Coast, Kentucky, Kenya, KwaZulu-Natal, Liberia, Madagascar, Malawi, Mali, Mauritania, Mauritius, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mozambique, Myanmar, Namibia, New Mexico, Niger, Nigeria, Northern Provinces, Northern Territory, Panamá, Paraguay, Peru, Queensland, Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Swaziland, Tanzania, Tennessee, Togo, Uganda, Venezuela, Western Australia, Zambia, Zaïre, Zimbabwe

Introduced into:

Alabama, New York

Cyperus macrostachyos Lam. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 1, 1893 Mauritius Pycreus tremulus K000363062
Grey, I. [s.n.], Mauritius Pycreus tremulus K000363061
Sep 1, 1989 Emperaire, L. [s.n.], Piauí Pycreus macrostachyos K000189210
Sep 1, 1989 Gardner, G. [2384], Piauí Pycreus macrostachyos K000189209
Schweinfurth, G. [2018], Sudan Pycreus macrostachyos K000363008
Kotschy [52], Ethiopia Pycreus macrostachyos K000363006
Kotschy [52], Ethiopia Pycreus macrostachyos K000363007
Schimper [1551], Ethiopia Pycreus macrostachyos K000363005
Schimper [1199], Ethiopia Pycreus macrostachyos K000363004
Bidgood, S. [5285], Tanzania Pycreus macrostachyos K000190515
Law, J.S. [s.n.], India Pycreus macrostachyos K000592585 isotype

First published in Tabl. Encycl. 1: 147 (1791)

Accepted by

  • Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
  • Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.

Not accepted by

  • Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Pycreus macrostachyos.]
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Pycreus macrostachyos.]

Literature

Kew Backbone Distributions

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
  • Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
  • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list www.liberianfaunaflora.org.
  • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
  • Lekhak, M.M. & Yadav, S.R. (2012). Herbacious vegetation of threatened high altitude lateritic plateau ecosystems of Western Ghats, southwestern Maharashtra, India Rheedea 22: 39-61.
  • Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542. New York Botanical Garden.

Flora of Somalia

  • Flora Somalia, Vol 4, (1995) Author: by K. A. Lye [updated by M. Thulin 2008]

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of West Tropical Africa
Flora of West Tropical Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Plants and People Africa
Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
© Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/