Koeleria pyramidata (Lam.) P.Beauv., 1812 39% complete

Crested hairgrass

Ess. Agrostogr.: 166 (1812)

Data sources

Each value Trefle shows for Koeleria pyramidata, 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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Sourced12 Differs from sources3 Source not recorded9 Not on the record6 Sources: TRY Plant Trait Database, Earlier Trefle data
Field Shown What the sources say
Core
Author (Lam.) P.Beauv. No source recorded
Source not recorded
Bibliography Ess. Agrostogr.: 166 (1812) 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 1812 No source recorded
Source not recorded
Descriptive
Common name Crested hairgrass No source recorded
Source not recorded
Observations Europe to Siberia and Nepal No source recorded
Source not recorded
Morphology
Average height 27 cm
  • 27 cm · TRY Plant Trait Database · Measured · 49 observations · 2026-10-09
    TRY 7.0 datasets 7, 25, 28, 86, 116, 164, 302, 310, 419, 500, 729, 818, 897, 898, 926
Sourced
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 164, 500, 918
Sourced
Flower color green
  • green · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Foliage texture coarse Sourced
Fruit shape empty Not on the record
Maximum height 75 cm
  • 75 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 7, 25, 28, 86, 116, 164, 302, 310, 419, 500, 729, 818, 897, 898, 926
Sourced
Sexuality empty Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months may, jun, jul
  • may|jun|jul · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Differs from sources
Duration perennial
  • perennial · TRY Plant Trait Database · Measured · 60 observations · 2026-10-09
    TRY 7.0 datasets 4, 7, 25, 28, 71, 86, 110, 164, 296, 432, 460, 818, 918
Sourced
Ecology
Atmospheric humidity 3 / 9 · rather dry air
  • 3 / 9 · rather dry air · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Ground humidity empty
  • 4 / 12 · moderately dry (meso-xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
Not on the record
Light 8 / 9 · light
  • 7 / 9 · half-light to light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 489
Differs from sources
Nitrogen fixation None
  • None · TRY Plant Trait Database · Measured · 31 observations · 2026-10-09
    TRY 7.0 datasets 20, 57, 67, 71, 96, 110, 130, 444, 445, 822
Sourced
Ph maximum pH 8
  • pH 8 · Earlier Trefle data · Inferred · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded derived from a Baseflor soil reaction class by the 2022 import, a class not a measurement
Sourced
Ph minimum pH 7.5
  • pH 7.5 · Earlier Trefle data · Inferred · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded derived from a Baseflor soil reaction class by the 2022 import, a class not a measurement
Sourced
Soil nutriments 2 / 9 · very poor (peroligotrophic)
  • 3 / 9 · poor (oligotrophic) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 242, 489
Differs from sources
Soil salinity 0 / 9 · absent from saline soils
  • 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 242, 489
Sourced
Cultivation
Minimum root depth 58 cm Sourced
Usda legacy
C n ratio empty Not on the record
Other
Soil ph indicator — Not on the record
Temperature indicator — Not on the record