Trisetopsis imberbis (Nees) Röser, A.Wölk & Veldkamp

Species

Angiosperms > Poales > Poaceae > Trisetopsis

Characteristics

Tufted perennial, 0.3-1.0 m high. Leaf blade 60-150(-250) x 1.5-6.0 mm, expanded; ligule an unfringed membrane. Inflorescence a panicle, 70-300 mm long, open or contracted, often interrupted. Spikelets 10-12 mm long (excluding awns), laterally compressed, rachilla internode 2 mm long, with hairs up to 2 mm long; glumes broadly lanceolate, acuminate, ± keeled; lower glume glabrous, 1-nerved, scaberulous along nerve; upper glume 2/3 as long as spikelet, 3-nerved. Florets 2-6; lemma oblong-lanceolate, glabrous, rounded on back, smooth or papillate, very often variegated with purple, 2-lobed, lobes 3-5 mm long (including awn) from above central awn insertion; central awn from between lobes, basal part twisted; lowest lemma > 7 mm long from base to where lobes start; anther 0.5-2.7 mm long. Flowering time Oct.-Apr.
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Tufted perennial 300-1 000 mm high. Leaf blade 60-150(-250) x 1.5-6.0 mm, expanded. Inflorescence 70-300 mm long, open or contracted, often interrupted. Spikelet 10-12 mm long (excluding awns), usually closely flowered; glumes broadly lanceolate, acuminate; lower glume 1-nerved, glabrous, scaberulous along the nerve; upper glume 2/3 as long as spikelet, 3-nerved; rachilla internode 2 mm long, with hairs to 2 mm long; lemma oblong-lanceolate, glabrous, smooth or papillate, very often variegated with purple, lobes 3-5 mm long (including awn) from above the central awn insertion; lowest lemma longer than 7 mm from the base to where lobes start; anther 0.5-2.7 mm long.
Perennial, tufted, up to 1 m high. Leaf blades 60-150 (-250) mm long, 1.5-6.0 mm wide. Leaf blades flat. Spikelets 10-12 mm long. Panicle 70-300 mm long, open or contracted, often interrupted; glumes broadly lanceolate, upper glume two-thirds the spikelet length; rhachilla internodes 2 mm long, with hairs to 2 mm long; lemma glabrous, smooth or papillate, very often variegated with purple, lobes, above insertion of awn, 3-5 mm long.
Perennial; up to 1 m high; tufted. Leaf blades 60-150 x 1.5-6.0 mm; flat. Flowers: panicle open or contracted; often interrupted; 70-300 mm long; spikelets 10-12 mm long; closely flowered; glumes narrowly ovate; upper glume 2/3 spikelet length; rachilla internodes 2 mm long; not showing; with hairs up to 2 mm long; lemmas glabrous; smooth or papillate; very often variegated with purple; lobes above insertion of awn; 3-5 mm long.
Perennial to 1 m. Leaves linear. Spikelets green, 10-12 mm long, in a panicle 7-30 cm long, upper glume two-thirds as long as spikelet, lemmas smooth or papillate, often purple.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 6-9
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-11

Usage

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

Cultivation

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

Distribution

Trisetopsis imberbis world distribution map, present in Lesotho, eSwatini, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:77142413-1
WFO ID wfo-0001340534
COL ID 592C2
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Arrhenatherum turgidulum Avenastrum turgidulum Helictotrichon turgidulum Avena turgidula Trisetopsis turgidula Trisetopsis imberbis