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Isolepis fluitans (L.) R.Br.

Floating club-rush (en), Scirpe flottant (fr), Isolépide flottante (fr), Éléogiton flottant (fr), Isolépis flottant (fr)

Species

Angiosperms > Poales > Cyperaceae > Isolepis

Characteristics

Perennial herb, mat-forming, 0.06-1.06 m long. Leaf blades 0.2-1.1 mm wide. Culm (peduncle) ± terete, 0.3-1.0 mm in diam. Inflorescence with culms (peduncles) single from upper few stem nodes, each bearing 1 terminal spikelet. Subtending bract very small, glume-like. Spikelets ovate to cylindric-lanceolate, 2.4-9.4 x 0.7-2.7 mm, 4-28-flowered. Glumes ovate, 1.5-3.4 x 0.5-1.3 mm, keel not excurrent or excurrent into minute point. Style branches 2. Flowering time Dec.-May. Nutlet broadly obovate, 0.8-1.8 x 0.5-1.2 mm, biconvex, yellow-brown, surface minutely reticulate.
More
Annual herb, up to 350 mm tall. Stem with leaf-bearing nodes. Spikelets solitary, lanceolate, 5 mm long. Nut lenticular, dark brown, shortly beaked, surface puncticulate. Glumes ovate, obtuse, straw-coloured or purplish brown.
Aquatic branching perennial, 15-30 cm. Spikelets green.
Life form perennial
Growth form herb
Growth support aquatic free-standing
Foliage retention
Sexuality
Pollination anemogamy
Spread barochory
Mature width (meter) -
Mature height (meter) 0.05 - 0.35
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light -
Soil humidity 5-10
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses medicinal
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

Habit

Isolepis fluitans habit picture by Genghis Attenborough (cc-by-sa)

Leaf

Isolepis fluitans leaf picture by Meadow_Mike Mike Hind (cc-by-sa)
Isolepis fluitans leaf picture by Florent Beck (cc-by-sa)

Flower

Isolepis fluitans flower picture by Partanen Asta (cc-by-sa)
Isolepis fluitans flower picture by Schnittler Martin (cc-by-sa)
Isolepis fluitans flower picture by Schnittler Martin (cc-by-sa)

Fruit

Isolepis fluitans fruit picture by Genghis Attenborough (cc-by-sa)

Distribution

Isolepis fluitans world distribution map, present in Angola, Australia, Burkina Faso, Comoros, Czech Republic, Germany, Denmark, Eritrea, Spain, Ethiopia, France, Indonesia, Ireland, Italy, Kenya, Lesotho, Madagascar, Mali, Mozambique, Mauritius, Namibia, Nigeria, Netherlands, Norway, New Zealand, Poland, Portugal, Réunion, Rwanda, Sudan, Sweden, eSwatini, Tanzania, United Republic of, Uganda, Viet Nam, South Africa, Zambia, and Zimbabwe

Conservation status

Isolepis fluitans threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:309323-1
WFO ID wfo-0000448873
COL ID 3Q9HS
BDTFX ID 36096
INPN ID 103862
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Clavula fluitans Scirpidiella fluitans Dichostylis fluitans Eleogiton curvula Eleogiton fluitans Eleocharis fluitans Schoenoplectus fluitans Scirpus fluitans Cyperus fluitans Heleogiton fluitans Scirpus fluitans var. fluitans Scirpus fluitans var. spadicea Isolepis fluitans

Lower taxons

Isolepis fluitans var. fluitans Isolepis fluitans var. nervosa Isolepis fluitans var. lenticularis
WorldFloraDB 2024