Cenchrus pedicellatus (Trin.) Morrone

First published in Ann. Bot. (Oxford) 106: 128 (2010)
This species is accepted
The native range of this species is Cape Verde, Tropical Africa, Madagascar, Indian Subcontinent to Myanmar. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/110679685/110679687

Conservation
LC - least concern
[IUCN]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Gramineae, W. D. Clayton. Flora Zambesiaca 10:3. 1989

Morphology General Habit
Annual.
Diagnostic
Like P. polystachion except: involucre fluffy, ovate, enclosing 1–5 spikelets, at least one of them on a pedicel 0.5–3.5 mm. long; bristles densely woolly.
[FZ]

Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flora of Tropical East Africa. 1974

Morphology General Habit
Annual (very rarely perennial in subsp. unispiculum);culms 30–150 cm. high, much branched.
Morphology Leaves
Leaf-blades 5–25 cm. long, 4–15 mm. wide.
Morphology Reproductive morphology Inflorescences
Panicle cylindrical, 5–15 cm. long; rhachis with sharp decurrent wings below the involucral scars, glabrous; involucre fluffy, ovate, 0.5–1 cm. long, enclosing 1–5 spikelets at least one of them upon a pedicel 0.5–3.5 mm. long; bristles densely woolly.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets lanceolate, 3.5–6 mm. long; lower glume lanceolate to oblong, 1–3 mm. long; upper glume as long as the spikelet, apiculate; lower lemma similar but tridentate, male or barren; upper lemma coriaceous, shining, readily deciduous at maturity, obtuse.
[FTEA]

Seed Collecting Guide. RBG Kew (2013-2016)

Morphology General Habit
Annual-culms geniculately ascending; 30-150 cm long
Morphology Branches
lateral branches ample
Morphology Leaves Ligules
ligule a ciliate membrane. leaf-blades 5-25 cm long; 4-15 mm wide
Morphology Reproductive morphology Inflorescences
inflorescencepanicle spiciform; linear; straight, or curved; 5-15 cm long. primary panicle branches accrescent to a central axis; with sessile scars on axis panicle axis with briefly decurrent ribs; glabrous; bearing deciduous spikelet clusters
Morphology Reproductive morphology Inflorescences Spikelets
lnvolucral bristles deciduous with the fertile spikelets; numerous; 15-25 in principal whorl; with one conspicuously longer bristle; 16--24 mm long; terete; flexible; woolly fertile spikelets comprising 1 basal sterile floret; 1 fertile floret; without rhachilla extension. spikelets lanceolate; dorsally compressed; 3.5-6 mm long; falling entire; deciduous with accessory branch structures; readily shedding fertile florets fertile spikelets sessile and pedicelled; 1-5 in the cluster; 0-1 sessile lnvolucre composed of bristles; ovate; 5-10 mm long; base obtuse spikelets subtended by an involucre
Morphology Reproductive morphology Inflorescences Bracts Glume
glumes dissimilar; reaching apex of florets; thinner than fertile lemma
Morphology Reproductive morphology Flowers Florets
floretsbasal sterile florets male, or barren; with palea, or without significant palea
Morphology Reproductive morphology Inflorescences Bracts Lemma
lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; membranous; 5 -veined; puberulous; dentate; 3 -fid
Morphology Reproductive morphology Flowers
flowerlodicules absent. anthers 3; 1.5-2.5 mm long; anther tip smooth
Morphology Reproductive morphology Fruits
caryopsis lanceolate, dorsally compressed, 0.5-2.5 mm long, golden brown.
Ecology
coastal bushland mostly in disturbed areas. altitude:0 - 100 m
Distribution
Tropical Africa, India, inda-China, and malesia, Australia and Brazil.
Conservation
Near endangered
Phenology
Flower (no data), fruit (no data)
[SCG]

Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
Annual up to about 1 m. high
Morphology Reproductive morphology Inflorescences
Fluffy white or purple inflorescences
Ecology
Often dominant upon fallow land in the drier savanna.
[FWTA]

Morphology General Habit
Annual. Culms geniculately ascending; 30-150 cm long. Lateral branches ample. Ligule a ciliate membrane. Leaf-blades 5-25 cm long; 4-15 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle spiciform; linear; straight, or curved; 5-15 cm long. Primary panicle branches accrescent to a central axis; with sessile scars on axis. Panicle axis with briefly decurrent ribs; glabrous; bearing deciduous spikelet clusters. Spikelets subtended by an involucre. Fertile spikelets sessile and pedicelled; 1-5 in the cluster; 0-1 sessile. Involucre composed of bristles; ovate; 5-10 mm long; base obtuse. Involucral bristles deciduous with the fertile spikelets; numerous; 15-25 in principal whorl; with one conspicuously longer bristle; 16-24 mm long; terete; flexible; woolly. Pedicels 0.5-3.5 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3.5-6 mm long; falling entire; deciduous with accessory branch structures; readily shedding fertile florets.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3.5-6 mm long; falling entire; deciduous with accessory branch structures; readily shedding fertile florets.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate, or oblong; 1-3 mm long; 0.33-0.5 length of spikelet; hyaline; without keels; 0-1 -veined. Lower glume lateral veins absent. Lower glume surface pubescent; hairy below. Lower glume apex emarginate, or obtuse, or acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5-7 -veined. Upper glume surface pubescent; hairy below. Upper glume margins eciliate, or ciliate. Upper glume apex acute; muticous, or mucronate.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets male, or barren; with palea, or without significant palea. Lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; membranous; 5 -veined; puberulous; dentate; 3 -fid. Fertile lemma lanceolate; 2.5-3 mm long; coriaceous; shiny; without keel; 5 -veined. Lemma margins flat. Lemma apex obtuse. Palea coriaceous.
Morphology Reproductive morphology Flowers
Lodicules absent. Anthers 3; 1.5-2.5 mm long; anther tip smooth.
Distribution
Africa: Macaronesia, west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, and western Indian ocean. Asia-tropical: India, Indo-China, and Malesia. Australasia: Australia. South America: Brazil.
Reference
Paniceae. FTEA.
[GB]

Sources

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    • http://creativecommons.org/licenses/by-nc-sa/3.0
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    • http://creativecommons.org/licenses/by-nc-sa/3.0
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    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
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    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0
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    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
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    • Copyright applied to individual images
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    • Seed Collection Guides
    • http://creativecommons.org/licenses/by-nc-sa/3.0