Data sources

Each value Trefle shows for Brassica oleracea, 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 sources2 Source not recorded8 Not on the record6 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.: 667 (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	Cabbage	No source recorded	Source not recorded
Observations	Atlantic coasts of Great Britain, France and Spain	No source recorded	Source not recorded
Morphology
Average height	50 cm	50 cm · TRY Plant Trait Database · Measured · 29 observations · 2026-10-09 TRY 7.0 datasets 25, 174, 175, 178, 251, 460, 500, 818, 882, 898, 918	Sourced
Biological type	chamaephyte	chamaephyte · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 4, 71, 174, 175, 178, 350, 500, 918	Sourced
Flower color	yellow	yellow · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 4, 350	Sourced
Foliage texture	empty	medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Not on the record
Fruit shape	silique	silique · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 4, 882	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	100 cm	100 cm · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 25, 174, 175, 178, 251, 460, 500, 818, 882, 898, 918	Sourced
Sexuality	empty	hermaphrodite · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	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	may	may · TRY Plant Trait Database · Measured · 2 observations · 2026-10-20 TRY 7.0 datasets 4, 174 1 earlier or rejected value Superseded jan, may · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4, 174	Sourced
Duration	biennial, perennial	biennial, perennial · TRY Plant Trait Database · Measured · 26 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 110, 178, 460, 818, 882, 918	Sourced
Ecology
Atmospheric humidity	8 / 9 · very humid air	8 / 9 · very humid air · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Ground humidity	5 / 12 · fresh, never flooded (mesohydric)	5 / 12 · fresh, never flooded (mesohydric) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Sourced
Light	8 / 9 · light	8 / 9 · light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Sourced
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09 TRY 7.0 datasets 67, 71, 110, 444, 445	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)	8 / 9 · very rich (pereutrophic) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Differs from sources
Soil salinity	7 / 9 · strongly saline (euhaline)	3 / 9 · slightly saline (oligohaline) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Differs from sources
Cultivation
Minimum root depth	112 cm	112 cm · TRY Plant Trait Database · Measured · 26 observations · 2026-10-09 TRY 7.0 datasets 818, 898	Sourced
Planting sowing description	"Sow seeds indoors and transplant outside	"Sow seeds indoors and transplant outside · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Other
Propagation method	—	seed · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Soil ph indicator	—	7 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Temperature indicator	—	7 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record

Brassica oleracea L., 1753 41% complete

Cabbage

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Data sources