Helleborus niger L., 1753 35% complete

Christmas-rose

Sp. Pl.: 558 (1753)

Data sources

Each value Trefle shows for Helleborus niger, 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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Sourced10 Differs from sources3 Source not recorded9 Not on the record8 Sources: TRY Plant Trait Database, Earlier Trefle data
Field Shown What the sources say
Core
Author L. No source recorded
Source not recorded
Bibliography Sp. Pl.: 558 (1753) 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 1753 No source recorded
Source not recorded
Descriptive
Common name Christmas-rose No source recorded
Source not recorded
Observations Alps, Appennini No source recorded
Source not recorded
Morphology
Average height 21 cm Differs from sources
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 500, 918
Sourced
Flower color white Sourced
Foliage texture empty Not on the record
Fruit shape empty Not on the record
Growth habit Forb/herb
  • Forb/herb · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Maximum height empty Not on the record
Sexuality empty Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months jan, feb, mar, apr
  • jan|feb|mar|apr · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Differs from sources
Duration perennial Sourced
Ecology
Atmospheric humidity 5 / 9 · medium air humidity
  • 5 / 9 · medium air humidity · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Ground humidity empty
  • 5 / 12 · fresh, never flooded (mesohydric) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
Not on the record
Light 5 / 9 · half-shade
  • 4 / 9 · shade to half-shade · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 489
Differs from sources
Nitrogen fixation None 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 4 / 9 · rather poor (meso-oligotrophic)
  • 4 / 9 · rather poor (meso-oligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
Sourced
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
Usda legacy
C n ratio empty Not on the record
Other
Soil ph indicator — Not on the record
Temperature indicator — Not on the record