Data sources

Each value Trefle shows for Solanum dulcamara, 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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Sourced15 Differs from sources3 Source not recorded9 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.: 185 (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	Bitter nightshade	No source recorded	Source not recorded
Observations	Azores, Temp. Eurasia to N. Indo-China, NW. Africa	No source recorded	Source not recorded
Morphology
Average height	70 cm	69.5 cm · TRY Plant Trait Database · Measured · 52 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 37, 68, 86, 90, 164, 174, 175, 178, 203, 251, 655, 918, 925	Differs from sources
Biological type	chamaephyte	chamaephyte · TRY Plant Trait Database · Measured · 708 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 164, 174, 175, 178, 203, 500, 918, 925	Sourced
Flower color	purple	purple · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 4, 655	Sourced
Foliage texture	medium	medium · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4, 71	Sourced
Fruit color	empty	red · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 882	Not on the record
Fruit shape	berry	berry · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 4, 882	Sourced
Growth habit	Subshrub, Vine, Forb/herb	Subshrub, Vine, Forb/herb · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Maximum height	200 cm	200 cm · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 37, 68, 86, 90, 164, 174, 175, 178, 203, 251, 655, 918, 925	Sourced
Sexuality	hermaphrodite	hermaphrodite · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4, 365	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Bloom months	jun	jun · TRY Plant Trait Database · Measured · 4 observations · 2026-10-20 TRY 7.0 datasets 4, 37, 174, 203 1 earlier or rejected value Superseded feb, jun · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 4, 37, 174, 203	Sourced
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 721 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 28, 37, 71, 86, 175, 178, 203, 365, 460, 882, 918, 925	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	9 / 12 · amphibious part of the year (seasonal helophyte)	9 / 12 · amphibious part of the year (seasonal helophyte) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 489	Sourced
Light	6 / 9 · half-shade to half-light	7 / 9 · half-light to light · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 489	Differs from sources
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 12 observations · 2026-10-09 TRY 7.0 datasets 20, 37, 57, 71, 89, 444, 445	Sourced
Ph maximum	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
Ph minimum	pH 6.5	pH 6.5 · 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)	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	0 / 9 · absent from saline soils	0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Sourced
Usda legacy
C n ratio	empty	8.9 · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 90, 227, 670	Not on the record
Other
Propagation method	—	seed, vegetative · 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 · 4 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Soil ph indicator	—	7 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 489	Not on the record
Temperature indicator	—	5 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 203	Not on the record

Solanum dulcamara L., 1753 45% complete

Bitter nightshade

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Data sources