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Cyperus rubicundus Vahl

Souchet (fr)

Species

Angiosperms > Poales > Cyperaceae > Cyperus

Characteristics

Annual herb, 0.02-0.20 m high. Leaves with sheaths ± inflated; blades 3-4 mm wide, ± succulent. Culm scapose, 3-angled, 1.0-1.5 mm in diam. Inflorescence a single head ± 20-45 mm in diam., of 3-20 spikelets. Subtending bracts 2, leaf-like. Spikelets compressed, large, of varying lengths in same head, up to 25 x 6 mm, 10-36-flowered. Glumes closely imbricate, lanceolate, 3-4 mm long, keel excurrent into small, ± straight point. Flowering time (Sept.) Dec.-Apr. (June. Nutlet obovate, 1.3 mm long, 3-angled, black appearing grey, surface finely reticulate when mature (cells arranged in lengthwise rows, thus at a younger stage surface appears striatulate.
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A tussocky, annual herb, up to 250 mm tall. Culm base succulent. Inflorescence a congested anthela with sessile spikelets only. Spikelets 4-15 mm long. Nutlet 0.9-1.1 mm long. Glumes 2.5-4.0 mm long, light brown.
Tufted perennial to 20 cm. Spikelets red and straw-coloured.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.14 - 0.23
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 9-11
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 rubicundus world distribution map, present in Angola, Australia, Burkina Faso, Djibouti, Eritrea, Ethiopia, Indonesia, India, Iceland, Kenya, Madagascar, Mauritius, Namibia, Réunion, Rwanda, Saudi Arabia, Sudan, Somalia, eSwatini, Timor-Leste, Tanzania, United Republic of, Uganda, Yemen, and South Africa

Conservation status

Cyperus rubicundus threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:305807-1
WFO ID wfo-0000381675
COL ID 33DD3
BDTFX ID 168268
INPN ID 706162
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Cyperus calcicola Cyperus delesserianus Cyperus rubicundus Cyperus teneriffae Cyperus tersus Cyperus coromandelinus Cyperus exilis Cyperus petraeus Cyperus serra Cyperus wightii Cyperus teneriffae var. longimucronatus Cyperus teneriffae var. succulentus Cyperus pentadactylus Cyperus teneriffae f. petraeus
WorldFloraDB 2024