Allium fistulosum L., 1753 39% complete

Welsh onion

Sp. pl. 1:301. 1753

Data sources

Each value Trefle shows for Allium fistulosum, 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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Sourced17 Differs from sources1 Source not recorded8 Not on the record3 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. 1:301. 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 Welsh onion No source recorded
Source not recorded
Observations a cultigen from China No source recorded
Source not recorded
Morphology
Average height 55 cm Sourced
Biological type geophyte Sourced
Edible part stem
  • stem · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Flower color white Sourced
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 true
  • true · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Phenology
Bloom months jul, aug, sep
  • jul|aug|sep · 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 · 5 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 110, 460, 918
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 9 / 9 · full sun
  • 9 / 9 · full sun · 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 8 / 9 · very rich (pereutrophic)
  • 8 / 9 · very rich (pereutrophic) · 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
Cultivation
Planting row spacing 30 cm
  • 30 cm · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Planting sowing description Sow in average soil in full sun after danger of frost in spring. In frost-free areas, sow in fall. Sow thinly 30cm apart and cover with 1cm of fine soil. Firm lightly and keep evenly moist. Seedlings emerge in 7-14 days.
  • Sow in average soil in full sun after danger of frost in spring. In frost-free areas, sow in fall. Sow thinly 30cm apart and cover with 1cm of fine soil. Firm lightly and keep evenly moist. Seedlings emerge in 7-14 days. · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Planting spread 8 cm
  • 8 cm · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced