Dittrichia viscosa (L.) Greuter, 1973 41% complete

False yellowhead

Exsicc. Genav. Conserv. Bot. Distrib. Fasc. 4: 71 (1973)

Data sources

Each value Trefle shows for Dittrichia viscosa, 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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Sourced13 Differs from sources2 Source not recorded10 Not on the record1 Sources: TRY Plant Trait Database, Earlier Trefle data
Field Shown What the sources say
Core
Author (L.) Greuter No source recorded
Source not recorded
Bibliography Exsicc. Genav. Conserv. Bot. Distrib. Fasc. 4: 71 (1973) 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 1973 No source recorded
Source not recorded
Descriptive
Common name False yellowhead No source recorded
Source not recorded
Family common name Aster family No source recorded
Source not recorded
Observations Macaronesia, Medit. No source recorded
Source not recorded
Morphology
Average height 45 cm
  • 45.32 cm · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09
    TRY 7.0 datasets 175, 349, 474, 544, 581, 882
Differs from sources
Biological type chamaephyte
  • chamaephyte · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09
    TRY 7.0 datasets 175, 349, 544, 805
Sourced
Flower color yellow
  • yellow · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Fruit shape achene Sourced
Growth habit Subshrub, Forb/herb
  • Subshrub, Forb/herb · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Maximum height 120 cm
  • 120 cm · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09
    TRY 7.0 datasets 175, 349, 474, 544, 581, 882
Sourced
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months sep, oct
  • sep|oct · 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 6 / 9 · moderately humid air
  • 6 / 9 · moderately humid air · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Light 8 / 9 · light
  • 8 / 9 · light · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Nitrogen fixation None Sourced
Ph maximum 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
Ph minimum pH 7
  • pH 7 · 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 6 / 9 · rather rich (meso-eutrophic)
  • 6 / 9 · rather rich (meso-eutrophic) · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Soil salinity 1 / 9 · barely saline (hyperoligohaline)
  • 1 / 9 · barely saline (hyperoligohaline) · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Cultivation
Minimum root depth empty Not on the record