Setaria homonyma (Steud.) Chiov.

First published in Nuovo Giorn. Bot. Ital., n.s., 26: 78 (1919)
This species is accepted
The native range of this species is Cameroon to Ethiopia and S. Africa, Indian Subcontinent to Myanmar. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Loosely tufted annual; culms 25–100 cm. high.
Morphology Leaves
Leaf-blades lanceolate, 5–25 cm. long, 5–35 mm. wide, plicate, thin, flaccid, light green.
Morphology Reproductive morphology Inflorescences
Panicle narrowly pyramidal, 4–20 cm. long, the spikelets subsessile in 2 rows on raceme-like primary branches, these villous or sometimes merely pubescent; bristles 5–10 mm. long, almost smooth.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets narrowly elliptic, 2–2.5 mm. long, slightly dorsally compressed; lower glume obtuse, 1/4 the length of the spikelet, the upper as long as the spikelet; lower floret barren, its palea ± reduced; upper lemma rugose.
Habitat
A weed of shady places, often associated with cultivation; 500–2200 m.
Distribution
K2 K3 T1 T2 T3 T4 T5 T6 T7 T8 U1 U2 U3 U4 Cameroun and Ethiopia to South Africaalso in India
[FTEA]

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

Morphology General Habit
Loosely tufted annual.
Morphology Culms
Culms 25–100 cm. high.
Morphology Leaves Leaf lamina
Leaf laminae lanceolate, plicate, thin, flaccid, light green.
Morphology Reproductive morphology Inflorescences
Panicle 4–20 cm. long, narrowly pyramidal, the spikelets subsessile in 2 rows on raceme-like primary branches, these villous or sometimes merely pubescent; bristles 5–10 mm. long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 2–2.5 mm. long, narrowly elliptic, slightly dorsally compressed.
Morphology Reproductive morphology Inflorescences Bracts Glume
Inferior glume obtuse, 1/8–1/4 length of spikelet, superior glume 4/5 to as long as spikelet.
Morphology Reproductive morphology Inflorescences Bracts Lemma
Superior lemma rugose.
Superior
Superior lemma rugose.
[FZ]

Morphology General Habit
Annual; caespitose. Culms 25-100 cm long. Ligule a fringe of hairs. Leaf-blades spreading; plicate; 5-25 cm long; 5-35 mm wide; flaccid; light green.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; pyramidal; 1-10(-20) cm long; contracted about primary branches. Primary panicle branches bearing spikelets almost to the base; sterile at the tips. Panicle branches secund (2-rowed); pubescent, or pilose, or villous. Spikelets subtended by an involucre. Fertile spikelets sessile; 1 in the cluster. Involucre composed of bristles; 5-10 mm long. Involucral bristles persistent; 1 in principal whorl; flexible; smooth; glabrous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; 2-2.5 mm long; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; 2-2.5 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reaching apex of florets; thinner than fertile lemma. Lower glume orbicular; 0.25 length of spikelet; hyaline; without keels; 3 -veined. Lower glume apex obtuse. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 5-7 -veined. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; with palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 5 -veined; obtuse. Palea of lower sterile floret 0.33-0.5 length of lemma. Fertile lemma ovate; dorsally compressed; gibbous; 2-2.5 mm long; indurate; without keel. Lemma surface rugose. Lemma margins involute. Palea involute; indurate. Palea surface rugose.
Distribution
Africa: west-central tropical, northeast tropical, east tropical, southern tropical, and south. Asia-tropical: India.
Reference
Paniceae. FTEA.
[GB]

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]

Common Names

English
Fan-leaved bristle grass.

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Flora Zambesiaca

    • Flora Zambesiaca
    • 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
  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). 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 Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © 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
  • 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/