Cyperus decurvatus (C.B.Clarke) C.Archer & Goetgh.

Species

Angiosperms > Poales > Cyperaceae > Cyperus

Characteristics

Perennial herb, tufted, 0.1-0.5 m high, base pseudobulbous. Leaf blades 2.0-5.0 mm wide, V-shaped. Culm scapose, obscurely 3-angled, 1.0-2.2 mm in diam. Inflorescence a simple anthela of 5-9 spikes, contracted to varying degrees to a head-like form, spikes shortly cylindrical, 10-20 x 11-28 mm. Subtending bracts 4-7, leaf-like. Spikelets slightly compressed, narrowly elliptic, (2.7-)6.2-12.5 x 0.6-3.3 mm, 2-5-flowered. Glumes imbricate, lanceolate with apex long-acuminate, ± recurved, 2.9-6.7 mm long, keel excurrent. Flowering time Feb., Mar. Nutlet narrowly elliptical, often curved, 1.5-2.4 x 0.4-0.7 mm, 3-angled, red-brown, surface minutely reticulate.
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Perennial herb, up to 0.5 m high; base a narrowly ovate pseudo-bulb. Leaves basal, many. Flowers: 4-7 bracts, up to 290 mm long; inflorescence an open, terminal umbel of 5-9, ± spreading spikelets; spikelets 6.2-12.5 x 0.6-3.3 mm long, narrowly elliptical, abscising as entire units, except for basal sterile glumes; glumes few per spikelet, 2.9-6.7 mm long, narrowly ovate with apex long-acuminate, conspicuously recurved, reddish brown; Nov.-Feb.
Small, tuft-forming, perennial herb, up to 0.54 mm high. Inflorescence a terminal, simple umbel of 5-9 rays, contracted to various degrees up to a multifid head-like structure. Glumes 2.9-6.7 mm long, apices recurving, straw-coloured.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.5
Root system -
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 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

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

Cultivation

Mode -
Germination duration (days) 25 - 30
Germination temperacture (C°) 21 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Cyperus decurvatus world distribution map, present in Botswana, Mozambique, Namibia, eSwatini, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:77122033-1
WFO ID wfo-0001334028
COL ID 33C28
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mariscus rehmannianus Cyperus decurvatus Mariscus vestitus var. decurvatus