Genus:
Cyperus L.

Cyperus tanzaniae (Lye) Lye

This species is accepted, and its native range is Tanzania to Zambia.

[FTEA]

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

Type
Type: Tanzania, Ufipa District: Rukwa Escarpment, Namwele, Robinson 4783 (K, holo.; K, iso., both out on loan)
Morphology General Habit
Perennial, medium-sized, up to 42 cm tall, with a thickish horizontal or curved rhizome.
Morphology Culms
Culms solitary or somewhat crowded, 15–40 cm long, 4–8 mm wide (?), trigonous, glabrous
Morphology Leaves
Leaves up to 8 cm long; blade linear, flat, 3–8 cm long, 1–2 mm wide, scabrid on margin and primary vein
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, reflexed or spreading, 2–3, lowermost 2–4 cm long
Morphology Reproductive morphology Inflorescences
Inflorescence capitate, a single white or cream ovoid to globose spike, 5–8 mm long, 5–7 mm wide.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 2.5–3.5 mm long, 1–2-flowered.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes whitish or cream, 2–3.5 mm long, keel unwinged, smooth, with 3–5 veins on either side, apex acuminate
Morphology Reproductive morphology Fruits
Nutlet dark brown to blackish, obovoid, flattened, 1.8–2 mm long, 0.9–1.2 mm wide, minutely papillose.
Ecology
Well-drained grassland, often in miombo zone; altitude unknown
Conservation
Data deficient (DD), as information on possible threats is needed
Note
Related to K. albiceps but distinct in thicker rhizome, and absence of long stolons.
Distribution
Range: Not known elsewhere Flora districts: T4 T7 T8

Native to:

Malawi, Tanzania, Zambia

Cyperus tanzaniae (Lye) Lye appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
May 13, 1984 Robinson, E.A. [1331], Zambia Kyllinga tanzaniae K000480606 No
May 10, 1984 Milne-Redhead, E. [3559], Zambia Kyllinga tanzaniae K000480607 No
May 10, 1984 White [s.n.], Malawi Kyllinga tanzaniae K000480605 No
Jan 1, 1971 Robinson, E.A. [4783], Tanzania Kyllinga tanzaniae K000416324 Unknown type material Yes
Jan 1, 1971 Robinson, E.A. [4783], Tanzania Kyllinga tanzaniae K000416325 Unknown type material Yes

First published in R.W.Haines & K.A.Lye, Sedges & Rushes E. Afr., App. 3: 2 (1983)

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 Kyllinga tanzaniae.]
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Kyllinga tanzaniae.]
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466. [Cited as Kyllinga tanzaniae.]

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.

  • Flora of Tropical East Africa

    Flora of Tropical East 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 2022. 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 2022. 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