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This species is accepted, and its native range is Eritrea to Ethiopia.
A specimen from Kew's Herbarium

[GB]
Morphology General Habit
Perennial; mat forming. Cataphylls evident. Rhizomes elongated. Culms decumbent; 10-25 cm long. Leaf-sheaths keeled; outer margin hairy. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Leaf-blades conduplicate; 5-16 cm long; 3-5 mm wide. Leaf-blade surface glabrous. Leaf-blade margins scaberulous. Leaf-blade apex obtuse.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; subtended by an inflated leaf-sheath; embraced at base by subtending leaf. Panicle spiciform; linear; 1-3 cm long; 0.6 cm wide; bearing few spikelets. Primary panicle branches accrescent to a central axis; with lateral stumps on axis. Panicle axis angular; glabrous. Spikelets subtended by an involucre. Fertile spikelets sessile; 1 in the cluster. Involucre composed of bristles; lanceolate; 10-20 mm long; base obtuse; base pubescent. Involucral bristles deciduous with the fertile spikelets; numerous; terete; flexible; ciliate.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 10-20 mm long; falling entire; deciduous with accessory branch structures.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 10-20 mm long; falling entire; deciduous with accessory branch structures.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate, or oblate; 0.5-1 mm long; 0.05-0.1 length of spikelet; membranous; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate, or oblate; 1-2 mm long; 0.1-0.15 length of spikelet; membranous; without keels; 0-1 -veined. Upper glume primary vein absent, or distinct. Upper glume lateral veins absent. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets male, or barren; with palea, or without significant palea. Lemma of lower sterile floret lanceolate, or ovate; 1 length of spikelet; membranous; 11-15 -veined; obtuse. Fertile lemma lanceolate; 10-20 mm long; membranous; without keel. Lemma margins flat. Lemma apex acute. Palea membranous.
Morphology Reproductive morphology Flowers
Lodicules absent. Anthers 3; 4-4.5 mm long; anther tip smooth. Filaments 5 mm long. Stigmas 2. Styles connate below; 1 of their length connate.
Distribution
Africa: Macaronesia and northeast tropical.
Reference
Paniceae. FTA 1993.

Native to:

Eritrea, Ethiopia

Cenchrus × longistylus (Hochst. ex A.Rich.) Thulin & S.M.Phillips appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Schimper [65], Ethiopia Pennisetum × longistylum K000281148 isotype
Schimper [65], Ethiopia Pennisetum × longistylum K000281147 isotype
Schimper [65], Ethiopia Pennisetum × longistylum K000281146 isotype
Schimper [65], Ethiopia Pennisetum × longistylum K000281145 isotype
Schimper [65], Ethiopia Pennisetum × longistylum K000281144 isotype

First published in Willdenowia 45: 174 (2015)

Literature

Kew Backbone Distributions

  • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.

GrassBase - The Online World Grass Flora
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