Brachiaria nigropedata (munro ex Ficalho & Hiern) Stapf

Spotted signal grass (en)

Species

Angiosperms > Poales > Poaceae > Brachiaria

Characteristics

Densely tufted perennial, the base ± bulbous and clad in silky tomentose sheaths; culms 25–100 cm. high.. Leaf-blades 6–30 cm. long, 2–8 mm. wide, pubescent to villous.. Inflorescence of 5–16 racemes on an axis 4–11 cm. long; racemes 1–6 cm. long, bearing the spikelets singly on a villous triquetrous rhachis.. Spikelets ovate-elliptic, 3.5–5 mm. long, silky villous with off-white hairs, these sometimes denser on the upper flanks of the lower lemma, acuminate to a subulate point, supported by a cylindrical black stipe ± 0.5 mm. long; lower glume 1/3–1/2(–2/3) the length of the spikelet, clasping, acute to acuminate; upper glume and lower lemma membranous; upper lemma obscurely rugulose, acute to mucronulate.
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Densely tufted perennial 300-1200 mm high; rhizome long, creeping. Leaf blade to 300 x 5-9 mm; ligule a fringe of hairs. Racemes 15-30(-40) mm long, secund; rachis triquetrous, sometimes very narrowly winged, less than 1 mm wide, villous; spikelets in two rows; pedicels of equal lengths. Spikelet 3-4 mm long, supported on a dark coloured stipe; lower glume 1/3-1/2(-2/3) as long as spikelet, often long-acuminate but very variable in the same inflorescence, distinctly darkly coloured at the base, 3-5-nerved; upper glume and lower lemma acuminate; upper lemma acute to mucronulate, obscurely rugulose; anther 1.0-2.3 mm long.
Perennial; up to 1.2 m high; densely tufted; with long and creeping rhizome. Culms erect; unbranched; nodes with short; white hairs. Leaf blades up to 300 x 5-9 mm. Flowers: inflorescence subdigitate; racemes secund; 15-30(-40) mm long; pedicels equal; spikelets 3-4 mm long; in 2 rows; lower glume acuminate but very variable in same inflorescence; distinctly darker coloured at base; clasping short internode between 2 glumes; upper glume and lower lemma also acuminate.
Perennial, densely tufted and rhizomatous (rhizome long and creeping), up to 1.2 m high. Leaf blades up to 300 mm long, 5-9 mm wide. Spikelets 3-4 mm long. Racemes secund, 15-30(-40) mm long; spikelets in 2 rows, pedicels equal; lower glume acuminate but very variable in the same inflorescence, distinctly darker coloured at base and clasping short internode between the two glumes; upper glume and lower lemma also acuminate.
Spikelets 3.5–5 mm. long, ovate-elliptic, silky villous with off-white hairs these becoming longer above and often gathered into a loose transverse fringe, acuminate to a subulate point, supported by a cylindrical black stipe c. 0.5 mm. long.
Inferior glume 1/3–1/2 (2/3) length of spikelet, acute to acuminate; superior glume and inferior lemma acuminate to a subulate point up to 1 mm. long. Superior lemma obscurely rugulose, acute to mucronate.
Inflorescence of 5–16 racemes, these 1–6 cm. long, bearing spikelets singly in 2 rows on a villous triquetrous rhachis.
Densely tufted perennial, the base ± bulbous and clad in silky tomentose sheaths.
Leaf laminae pubescent to villous.
Culms 25–100 cm. high.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.28 - 1.1
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 1-3
Soil texture 5-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Brachiaria nigropedata unspecified picture

Distribution

Brachiaria nigropedata world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:392961-1
WFO ID wfo-0000854178
COL ID 68QD2
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Brachiaria nigropedata Panicum melanotylum