Setaria sphacelata Stapf & C.E.Hubb. ex M.B.Moss

African bristlegrass (en)

Species

Angiosperms > Poales > Poaceae > Setaria

Characteristics

Tufted perennial arising from short rhizomes, these occasionally elongated and creeping; basal sheaths often flabellate, sometimes conspicuously so; culms 20–300 cm. high, the nodes quite glabrous.. Leaf-blades flat or convolute, 10–50 cm. long, 2–17 mm. wide, acuminate.. Panicle spiciform, cylindrical, 3–50 cm. long, spikelets pallid to purple with fulvous bristles (except var. torta), the rhachis tomentellous; bristles 1.5–12 mm. long, 6–15 below each cluster of 1–4 spikelets.. Spikelets elliptic, oblique but scarcely gibbous or laterally compressed, 1.5–3.5 mm. long; lower glume up to 1/2 as long as the spikelet, obtuse or acute; upper glume 1/3–2/3(–3/4) as long as the spikelet, (3–)5-nerved; lower floret male, its lemma thinly papery; upper lemma rugose, usually strongly so, but occasionally almost smooth.
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Golden bristle grass, twisted leaf bristle grass, creeping bristle grass Tufted, robust to almost reed-like perennial, 0.4-2.0 m high; sometimes rhizomatous occasionally with stilt roots; nodes glabrous. Leaf blade 100-800 x 1-18 mm, flat; ligule a fringed membrane or a fringe of hairs. Inflorescence a spike-like panicle, 25-500 mm long; spikelets subtended by 6-15 bristles; bristles 4-10 mm long, slender, finely scabrid, golden-yellow to reddish brown, persistent on axis after spikelets fall. Spikelets 1.5-3.5 mm long, dorsiventrally compressed; lower glume 3-nerved; upper glume 3-5-nerved. Florets 2; lower floret male or sterile, lemma widely grooved; upper floret bisexual, lemma indurated, coarsely rugose, entire; anther 0.7-1.8 mm long. Flowering time Oct.-June.
A grass which keeps growing from year to year. It is 0.5-2 m tall. It normally forms compact tufts. Some kinds have long creeping stolons and form tillers. The stems are erect and simple. The leaves can be smooth or hairy. They are narrow and taper to a short tip. The flower is a slender spike-like head 7.5-25 cm long. It is often golden in colour.
Panicle 3–50 cm. long, spiciform, cylindrical, spikelets mostly pallid to purple with fulvous bristles, the rhachis tomentellous; bristles 1.5–12 mm. long, 6–15 below each cluster of 1–4 spikelets.
Rhizomatous perennial to 1 m. Leaves linear, mostly rolled. Spikelets 2-3 mm long, in a spike-like panicle, golden-yellow, bristles 7-15 per cluster, lower glume 3-nerved.
Spikelets 1.5–3.5 mm. long, elliptic, oblique but scarcely gibbous or laterally compressed.
Inferior glume up to 1/2, the superior 1/3–2/3(3/4) length of spikelet and (3)5-nerved.
Superior floret rugose, usually strongly so, but occasionally almost smooth.
Caespitose perennial about 1 m. high, arising from a short rhizome.
Culms 20–300 cm. high, the nodes quite glabrous.
Tufted perennial, arising from a short rhizome.
Inferior floret male, its lemma thinly papery.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.4 - 2.0
Root system rhizome
Rooting depth (meter) 1.5
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c4

Environment

A tropical plant. It can grow in warm temperate and tropical regions. It grows in hot arid places. It grows in areas with an annual rainfall above 500 mm. It grows on a range of soils and they can be poorly waterlogged. It grows in wet grass savannah. It can grow in arid places.
Light 4-9
Soil humidity 4-9
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

It is reported as being boiled then ground into a meal. It is used in kreb a grain mixture eaten in Chad.
Uses animal food environmental use fodder food gene source material medicinal poison
Edible seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) 22 - 30
Size -
Vigor -
Productivity -

Images

Habit

Setaria sphacelata habit picture by Vågen (cc-by-sa)

Leaf

Setaria sphacelata leaf picture by susan brown (cc-by-sa)
Setaria sphacelata leaf picture by susan brown (cc-by-sa)

Flower

Setaria sphacelata flower picture by susan brown (cc-by-sa)
Setaria sphacelata flower picture by Augustin Soulard (cc-by-sa)
Setaria sphacelata flower picture by Leigh Winowiecki (cc-by-sa)

Distribution

Setaria sphacelata world distribution map, present in Angola, Åland Islands, Andorra, Benin, Burkina Faso, Bangladesh, Brazil, Botswana, Central African Republic, Congo, Cook Islands, Cabo Verde, Costa Rica, Ecuador, Eritrea, Ethiopia, Fiji, Gabon, Ghana, Guinea, Gambia, Guinea-Bissau, Honduras, Indonesia, Kenya, Lao People's Democratic Republic, Lesotho, Madagascar, Mali, Myanmar, Mozambique, Mauritania, Mauritius, Namibia, Nigeria, Nicaragua, Philippines, Paraguay, Réunion, Rwanda, Saudi Arabia, Sudan, Senegal, Solomon Islands, Sierra Leone, Somalia, eSwatini, Chad, Togo, Thailand, Taiwan, Province of China, Tanzania, United Republic of, Uganda, Uruguay, United States of America, Viet Nam, Samoa, Yemen, South Africa, Zambia, and Zimbabwe

Conservation status

Setaria sphacelata threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:421814-1
WFO ID wfo-0000899566
COL ID 4X2LW
BDTFX ID -
INPN ID 635380
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Setaria alpestris Chaetochloa aurea Panicum rudimentosum Panicum sphacelatum Pennisetum aureum Setaria almaspicata Setaria angustifolia Setaria bussei Setaria cana Setaria decipiens Setaria homblei Setaria isalensis Setaria myosuroides Setaria neglecta Setaria rudimentosa Setaria scalaris Setaria splendida Setaria stenantha Setaria tenuispica Setaria trinervia Setaria flabellata Setaria flabelliformis Setaria laxispica Panicum aureum Setaria anceps Setaria aurea Setaria chrysantha Setaria chrysochaeta Setaria perennis Setaria planifolia Chaetochloa glauca var. aurea Setaria aurea subsp. kisunduensis Setaria aurea var. fumigata Setaria aurea var. latifolia Setaria aurea var. longiseta Setaria aurea var. pallida Setaria aurea var. palustris Setaria flabellata subsp. natalensis Setaria glauca var. aurea Setaria sphacelata var. anceps Setaria sphacelata var. aurea Setaria sphacelata var. sericea Setaria sphacelata var. splendida Setaria sphacelata var. torta Setaria anceps var. sericea Setaria torta Setaria aurea f. minor Setaria stolzii Setaria anceps Setaria sphacelata var. sphacelata Setaria flabellata subsp. flabellata Setaria aurea var. kinsundensis Panicum chrysanthum Setaria sphacelata