Ambrosia tenuifolia Spreng., 1826 33% complete

Bur ragweed

Syst. Veg. 3: 851 (1826)

Data sources

Each value Trefle shows for Ambrosia tenuifolia, 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.

Something wrong? Suggest a correction.

Sourced10 Differs from sources1 Source not recorded10 Not on the record1 Sources: TRY Plant Trait Database, Earlier Trefle data
Field Shown What the sources say
Core
Author Spreng. No source recorded
Source not recorded
Bibliography Syst. Veg. 3: 851 (1826) 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 1826 No source recorded
Source not recorded
Descriptive
Common name Bur ragweed No source recorded
Source not recorded
Family common name Aster family No source recorded
Source not recorded
Observations Bolivia to Brazil and N. Argentina No source recorded
Source not recorded
Morphology
Flower color empty Not on the record
Fruit shape achene Sourced
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 68 cm Differs from sources
Vegetable false No source recorded
Source not recorded
Phenology
Duration perennial Sourced
Ecology
Atmospheric humidity 4 / 9 · moderately dry air
  • 4 / 9 · moderately dry 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 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 7 / 9 · rich (eutrophic)
  • 7 / 9 · rich (eutrophic) · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Soil salinity 0 / 9 · absent from saline soils
  • 0 / 9 · absent from saline soils · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced