Data sources

Each value Trefle shows for Koenigia polystachya, 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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Sourced8 Source not recorded8 Not on the record7 Sources: TRY Plant Trait Database, POWO / WCVP (Kew)

Field	Shown	What the sources say
Core
Author	(Wall. ex Meisn.) T.M.Schust. & Reveal	(Wall. ex Meisn.) T.M.Schust. & Reveal · POWO / WCVP (Kew) · Reported · 2026-10-11	Sourced
Bibliography	Taxon 64: 1202 (2015)	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	2015	No source recorded	Source not recorded
Descriptive
Common name	Cultivated knotweed	No source recorded	Source not recorded
Observations	Afghanistan to SC. China	No source recorded	Source not recorded
Morphology
Average height	150 cm	150 cm · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 116, 164, 174, 178, 500	Sourced
Biological type	geophyte	geophyte · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09 TRY 7.0 datasets 4, 164, 174, 178, 500	Sourced
Flower color	white	white · TRY Plant Trait Database · Measured · 2 observations · 2026-10-20 TRY 7.0 datasets 4 1 earlier or rejected value Superseded white · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4	Sourced
Foliage texture	empty	medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-20 TRY 7.0 datasets 4 1 earlier or rejected value Superseded medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Not on the record
Fruit shape	empty	nut · TRY Plant Trait Database · Measured · 1 observation · 2026-10-20 TRY 7.0 datasets 4 1 earlier or rejected value Superseded nut · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Not on the record
Maximum height	175 cm	175 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 116, 164, 174, 178, 500	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Bloom months	aug, sep	aug, sep · TRY Plant Trait Database · Measured · 7 observations · 2026-10-20 TRY 7.0 datasets 4, 174 1 earlier or rejected value Superseded feb, sep · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09 TRY 7.0 datasets 4, 174	Sourced
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 164, 178, 460	Sourced
Ecology
Ground humidity	empty	4 / 12 · moderately dry (meso-xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-20 TRY 7.0 datasets 178 1 earlier or rejected value Superseded 4 / 12 · moderately dry (meso-xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Light	empty	8 / 9 · light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-20 TRY 7.0 datasets 178 1 earlier or rejected value Superseded 8 / 9 · light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Nitrogen fixation	empty	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-20 TRY 7.0 datasets 71 1 earlier or rejected value Superseded None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 71	Not on the record
Soil nutriments	empty	6 / 9 · rather rich (meso-eutrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-20 TRY 7.0 datasets 178 1 earlier or rejected value Superseded 6 / 9 · rather rich (meso-eutrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Soil salinity	0 / 9 · absent from saline soils	0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 4 observations · 2026-10-20 TRY 7.0 datasets 174, 178 1 earlier or rejected value Superseded 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 174, 178	Sourced
Other
Soil ph indicator	—	5 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-20 TRY 7.0 datasets 178 1 earlier or rejected value Superseded 5 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record

Koenigia polystachya (Wall. ex Meisn.) T.M.Schust. & Reveal, 2015 22% complete

Cultivated knotweed

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Data sources