Polevansia rigida De Winter

Species

Angiosperms > Poales > Poaceae > Polevansia

Characteristics

Perennial, 100-410 mm high, mat-forming, rhizomatous and stoloniferous. Leaf blade 10-30 x 1.5-2.0 mm; sheath loose and overlapping; ligule a fringed membrane. Inflorescence a number of short, dense, not distinctly secund, spike-like racemes, appressed and arranged alternately on central axis; oblong; rachis branches and pedicels triangular in cross section. Spikelets 3.5-4.5 mm long, dorsiventrally compressed; glumes unequal, with a single thick central nerve. Floret 1; lemma dorsiventrally compressed, subcoriaceous, acute, small mucro present; callus short, obtuse; anther 2.5-3.0 mm long. Flowering time Feb.-May.
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Perennial 100-410 mm high, mat-forming; rhizomatous and stoloniferous. Leaf blade 10-30 x 1.5-2.0 mm; sheath loose and overlapping. Inflorescence oblong. Spikelet 3.5-4.5 mm long, dorsiventrally compressed, disarticulating above glumes; glumes unequal, with a single thick central nerve, awnless; lemma subcoriaceous, acute, awnless; callus short, obtuse; anther 2.5-3.0 mm long.
Perennial; 0.10-0.41 m high; stoloniferous; mat-forming. Leaf blades 10-30 x 1.5-2.0 mm; leaf sheaths loose and overlapping. Flowers: panicle contracted; racemes appressed; spikelets 3.5-4.5 mm long; dorsally compressed; callus short; obtuse; glumes persistent; unequal; with a single thick central nerve; lemmas subcoriaceous; acute and not awned.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.41
Root system -
Rooting depth (meter) -
Root diameter (meter) -
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Blooming months -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 10-12
Soil texture 7-8
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 -
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Optimum temperature (C°) -
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Productivity -

Distribution

Polevansia rigida world distribution map, present in Lesotho and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:418521-1
WFO ID wfo-0000894464
COL ID 4KXKQ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polevansia rigida