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This species is accepted, and its native range is Medit. to Arabian Peninsula and Africa.
Eleocharis caduca (Delile) Schult.

[FSOM]

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

Morphology General Habit
Fairly slender perennial or perhaps sometimes annual forming dense swards with numerous crowded stems from the end of stolons and more scattered stems from horizontally spreading c. 1 mm thick stolons at soil level or slightly above
Morphology Stem
Stems 3–20 cm long and 0.5–1.2 mm thick, terete to angular
Morphology Leaves Leaf sheaths
Sheath grey above, brown or reddish brown below, the tip triangular, membranous
Morphology Reproductive morphology Inflorescences Spikelets
Spikelet ovate to lanceolate with acute tip, usually 4–5 x 2–2.5 mm, 10–30-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 2.2–2.5 mm long, broadly ovate, grey to reddish brown, with a green thick midrib ending at or below the rounded apex; margin with pale irregular border
Morphology Reproductive morphology Flowers Perianth
Perianth-bristles 6–7, of which at least 3 longer than the nutlet, light reddish brown with numerous recurved bristles
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 long branches
Morphology Reproductive morphology Fruits
Nutlet 0.8–1 mm long (excluding the appendage), dark reddish brown and glossy, with a 0.3 mm long triangular pale appendage.
Distribution
N1, 2 scattered in Africa but rare.
Ecology
Altitude range 1350–1500 m.

[FTEA]

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

Type
Type: Tanzania, Rungwe District: Kyimbila, Stolz 1132 (B!, holo.; B!, K!, iso.)
Morphology General Habit
Annual or possibly perennial.
Morphology Culms
Culms 3–20 cm tall, angular, 0.4–1.2 mm thick; producing short horizontal or suberect stolons 0.5–1 mm thick and producing plants at short (a few mm) intervals, giving rise to dense tufts.
Morphology Roots
Roots slender.
Morphology Leaves Leaf sheaths
Sheath pale or brown, ending in a pale transparent narrowly triangular lobe
Morphology Reproductive morphology Inflorescences Spikelets
Spikelet ovoid, 2–5 × 1–2.5 mm, with 4–8 flowers.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes light brown to reddish brown with green midrib, 1.8–2.5 × 0.8–1 mm, acute or obtuse.
Morphology Reproductive morphology Flowers Perianth
Perianth of 6–7 white or red-brown barbellate bristles with recurved teeth, longer than the nutlet
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens not seen
Morphology Reproductive morphology Flowers Gynoecium Style
Style 2branched
Morphology Reproductive morphology Fruits
Nutlet glossy dark reddish brown or black, obovoid and flattened, 0.7–1 × 0.5 mm, with large pale triangular appendage 0.3 mm long.
Ecology
Swamp, pool margins; 1350–1500 m
Note
Haines & Lye have this as a synonym of Scirpus caducus Del. in Fl. Egypte: 153 (1814). Type: Egypt, Damietta, collector unclear (P, holo.) = Eleocharis caduca (Del.) Schultes in Mant. 2: 88 (1824); Haines & Lye in Sedges & Rushes E. Afr.: 71, fig. 103 (1983). I have not made a decision but have followed Lye in his recent Flora treatments.
Distribution
Range: Chad, Ethiopia, Somalia; Madagascar, Mauritius, Libya, Egypt Flora districts: T7

Native to:

Algeria, Baleares, Botswana, Cape Provinces, Chad, Egypt, Ethiopia, Iran, Italy, Kriti, KwaZulu-Natal, Libya, Madagascar, Mauritius, Mozambique, Niger, Northern Provinces, Portugal, Sardegna, Sinai, Socotra, Somalia, Sudan, Tanzania, Yemen, Zambia, Zimbabwe

Eleocharis caduca (Delile) Schult. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1933 Stolz, A. [1132], Tanzania Eleocharis intricata K000416635 Unknown type material

First published in Mant. 2: 88 (1824)

Accepted by

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Govaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Verloove, F. & Sáchez Gullón, E. (2010). Further notes on Cyperaceae in the Iberian Peninsula: corrections, adjustments and additions Flora Mediterranea 20: 141-147.

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Verloove, F. & Sáchez Gullón, E. (2010). Further notes on Cyperaceae in the Iberian Peninsula: corrections, adjustments and additions Flora Mediterranea 20: 141-147.

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

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/