Glyceria fluitans (L.) R.Br., 1810 43% complete

Water mannagrass

Prodr. Fl. Nov. Holland.: 179 (1810)

Data sources

Each value Trefle shows for Glyceria fluitans, with what every source says about it. When sources disagree, the strongest source is shown (how sources are ranked). Values imported before sources were recorded one by one are marked Source not recorded.

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Sourced8 Differs from sources4 Source not recorded14 Not on the record6 Sources: TRY Plant Trait Database
Field Shown What the sources say
Core
Author (L.) R.Br. No source recorded
Source not recorded
Bibliography Prodr. Fl. Nov. Holland.: 179 (1810) No source recorded
Source not recorded
Phylum Tracheophyta No source recorded
Source not recorded
Rank species No source recorded
Source not recorded
Status accepted No source recorded
Source not recorded
Year 1810 No source recorded
Source not recorded
Descriptive
Common name Water mannagrass No source recorded
Source not recorded
Observations Europe to Turkmenistan, Morocco No source recorded
Source not recorded
Morphology
Average height 50 cm
  • 50.1 cm · TRY Plant Trait Database · Measured · 16 observations · 2026-10-09
    TRY 7.0 datasets 25, 86, 116, 174, 178, 203, 500, 818, 882, 897, 898, 918
Differs from sources
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 174, 178, 203, 500, 918
Sourced
Flower color green No source recorded
Source not recorded
Foliage texture empty Not on the record
Fruit shape caryopsis Sourced
Growth habit Graminoid No source recorded
Source not recorded
Maximum height 95 cm
  • 95 cm · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09
    TRY 7.0 datasets 25, 86, 116, 174, 178, 203, 500, 818, 882, 897, 898, 918
Sourced
Sexuality empty Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months may, jun, jul, aug Differs from sources
Duration perennial
  • perennial · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 86, 178, 203, 818, 882, 918
Sourced
Ecology
Atmospheric humidity 9 / 9 · saturated air No source recorded
Source not recorded
Ground humidity 10 / 12 · amphibious all year, base always under water (permanent helophyte)
  • 10 / 12 · amphibious all year, base always under water (permanent helophyte) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 178, 203
Sourced
Light 7 / 9 · half-light to light
  • 6 / 9 · half-shade to half-light · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09
    TRY 7.0 datasets 169, 489
Differs from sources
Nitrogen fixation None Sourced
Ph maximum pH 5.5 No source recorded
Source not recorded
Ph minimum pH 5 No source recorded
Source not recorded
Soil nutriments 4 / 9 · rather poor (meso-oligotrophic)
  • 7 / 9 · rich (eutrophic) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 169, 242
Differs from sources
Soil salinity 0 / 9 · absent from saline soils
  • 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09
    TRY 7.0 datasets 178, 242
Sourced
Cultivation
Minimum root depth 36 cm Sourced
Other
Propagation method — Not on the record
Shade tolerance — Not on the record
Soil ph indicator — Not on the record
Temperature indicator — Not on the record