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This species is accepted, and its native range is W. Kenya to S. Tropical Africa.

[FTEA]

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

Type
Type: Zambia, Chishimba falls, Robinson 4357 (K, holo., out on loan; GHS, iso.)
Morphology General Habit
Perennial, up to 20 cm tall, without rhizomes or stolons.
Morphology Culms
Culms densely tufted, 6–8 per plant, 6–19 cm long, 1–1.5 mm wide (protologue says cm!), subtriangular, strongly ridged; bases bulbous, surrounded by dense old leaf fibres
Morphology Leaves
Leaf sheath light green to whitish, 1.5–3 cm long. Leaves up to 17.5 cm long. Leaf blade linear, 6–17.5 cm long, 1.5–2 mm wide
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, usually 3, lowermost 6–9.5 cm long, 1.8–2.5 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence with a central light green to dirty white spike 7–9 × 3.5–5 mm, and 2 smaller lateral spikes.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets many, ovoid, 1.2–2.8 mm long, 2flowered, the upper usually vestigial.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes ± translucent, ovate, keel densely ciliate, winged, not dentate, apex shortly acuminate; 1–2-veined on each side
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.8–1 mm long
Morphology Reproductive morphology Fruits
Nutlet light brown, ovoid-oblong, 2.5–3.5 mm long, papillose.
Ecology
Pond edge or grassland within Acacia bushland; 1400–2000 m
Conservation
Least concern (LC)
Note
Related to K. pumila from which it differs in small stature, densely fibrous bases, longer and narrower leaves, densely ciliate glume keels, equal glumes and 3–4 mm long prophyll, densely ciliate on keel.
Distribution
Range: Zambia, Mozambique, Angola Flora districts: K 2T7

Native to:

Angola, Kenya, Malawi, Tanzania, Zambia, Zimbabwe

Cyperus robinsonianus (Mtot.) Lye appears in other Kew resources:

First published in Lidia 7: 97 (2011)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.

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