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This species is accepted, and its native range is Central African Republic to NE. & E. Tropical Africa, Indo-China.
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
Annual or short-lived perennial up to 100 cm high
Morphology Leaves Ligules
Ligule membranous, 1–4 mm long
Morphology Leaves
Leaves rounded at the base, up to 10 mm wide, glaucous
Morphology Reproductive morphology Inflorescences
False panicle linear to oblong, 15–30 cm long; racemes 10–15 mm long, the lowermost internode and pedicel connate and slightly swollen
Morphology Reproductive morphology Inflorescences Spikelets
Pedicelled spikelet narrowly lanceolate, 4.5–5 mm long, with clear closely spaced nerves. Sessile spikelet narrowly elliptic, 4–5 mm long; lower glume thinly membranous, narrowly to broadly winged, shallowly concave on the back and with a shallow V-shaped median groove in the lower 1/2, the two clear intercarinal nerves flanked by brown oil-streaks; awn of upper lemma c. 15 mm long, with distinct column
Distribution
S3; Ethiopia, Sudan
Note
The specimen cited, thus far the only record of the species in Somalia, is in a rather poor state of preservation; however, it is possible to see that while the texture of the glume and the presence of oil-streaks indicate C. nervatus, the pedicel and internode do not appear to be swollen.

[GB]
Morphology General Habit
Annual; culms solitary, or caespitose. Culms erect, or geniculately ascending; 50-180 cm long; 1.5-5 mm diam.; without nodal roots, or with prop roots. Ligule an eciliate membrane; 3 mm long. Leaf-blade base broadly rounded. Leaf-blades 15-30 cm long; 6-10 mm wide; flaccid; glaucous; aromatic.
Morphology Reproductive morphology Inflorescences
Synflorescence compound; linear; 10-15 cm long; dense. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; enclosed. Spatheole lanceolate; 1.2-1.6 cm long. Peduncle 0.4-0.8 cm long. Racemes 2; paired; deflexed; 1.2-1.6 cm long. Rhachis fragile at the nodes; semiterete; glabrous on surface; ciliate on margins. Rhachis internodes linear; 2 mm long. Rhachis internode tip transverse; cupuliform. Raceme-bases flattened; subequal. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear; semiterete; 2 mm long; ciliate; hairy on margins.
Morphology Reproductive morphology Inflorescences Spikelets
Basal sterile spikelets well-developed; 2 in number (lower raceme); 0 in upper raceme; with swollen internode in lower raceme; sessile and pedicelled. Basal sterile spikelet pedicels free; swollen in lower raceme. Basal sterile spikelets equalling fertile. Companion sterile spikelets well-developed; male; oblong; 4-5 mm long; as long as fertile; deciduous with the fertile. Companion sterile spikelet glumes chartaceous; winged on keels; distinctly veined; 7 -veined; acute; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base obtuse; inserted.
Sterile
Basal sterile spikelets well-developed; 2 in number (lower raceme); 0 in upper raceme; with swollen internode in lower raceme; sessile and pedicelled. Basal sterile spikelet pedicels free; swollen in lower raceme. Basal sterile spikelets equalling fertile. Companion sterile spikelets well-developed; male; oblong; 4-5 mm long; as long as fertile; deciduous with the fertile. Companion sterile spikelet glumes chartaceous; winged on keels; distinctly veined; 7 -veined; acute; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base obtuse; inserted.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of spikelet; membranous; with oil streaks; 2-keeled; keeled all along; keeled laterally; winged on keel; winged narrowly. Lower glume intercarinal veins distinct; 2 in number. Lower glume surface with V-shaped depression. Lower glume apex emarginate. Upper glume lanceolate; 1-keeled; winged on keel. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret hyaline. Fertile lemma lanceolate; 4 mm long; hyaline; without keel. Lemma apex lobed; 2 -fid; incised 0.5 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 8-16 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.
Morphology Reproductive morphology Flowers
Anthers 3; 2 mm long.
Distribution
Africa: northeast tropical. Asia-temperate: Arabia. Asia-tropical: Indo-China.
Reference
Andropogoneae. FTA 1993.

Doubtfully present in:

Saudi Arabia

Native to:

Central African Repu, Eritrea, Ethiopia, Kenya, Myanmar, Somalia, Sudan, Tanzania, Thailand

Cymbopogon nervatus (Hochst.) Chiov. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Kotschy [374] K000280503 isotype

First published in Alc. Gram. Essenz.: 10 (1909)

Accepted by

  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Cope, T.A., Knees, S.G. & Miller, A.G. (2007). Flora of the Arabian peninsula and Socotra 5(1): 1-387. Edinburgh University Press.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • 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.
  • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
  • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Cope, T.A., Knees, S.G. & Miller, A.G. (2007). Flora of the Arabian peninsula and Socotra 5(1): 1-387. Edinburgh University Press.
  • 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.
  • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
  • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.

Flora of Somalia

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

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

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