Data sources

Each value Trefle shows for Vicia sativa subsp. nigra, 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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Sourced9 Differs from sources2 Source not recorded13 Not on the record3 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Ehrh.	No source recorded	Source not recorded
Bibliography	Hannover. Mag. 18: 229 (1780)	No source recorded	Source not recorded
Rank	ssp	No source recorded	Source not recorded
Status	accepted	No source recorded	Source not recorded
Year	1780	No source recorded	Source not recorded
Descriptive
Observations	Macaronesia, Temp. Eurasia, N. Africa to Kenya	No source recorded	Source not recorded
Morphology
Average height	23 cm	22.5 cm · TRY Plant Trait Database · Measured · 24 observations · 2026-10-09 TRY 7.0 datasets 71, 116, 175, 203, 251, 299, 654, 882, 918, 926	Differs from sources
Biological type	therophyte	therophyte · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09 TRY 7.0 datasets 71, 175, 203, 918	Sourced
Flower conspicuous	true	No source recorded	Source not recorded
Foliage texture	coarse	medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 71	Differs from sources
Fruit color	black	black · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Fruit shape	legume	legume · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Growth form	Single Stem	No source recorded	Source not recorded
Growth habit	Vine, Forb/herb	No source recorded	Source not recorded
Growth rate	Rapid	No source recorded	Source not recorded
Maximum height	60 cm	60 cm · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 71, 116, 175, 203, 251, 299, 654, 882, 918, 926	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	annual	annual · TRY Plant Trait Database · Measured · 12 observations · 2026-10-09 TRY 7.0 datasets 71, 175, 203, 299, 882, 918	Sourced
Ecology
Ground humidity	4 / 12 · moderately dry (meso-xerophilous)	4 / 12 · moderately dry (meso-xerophilous) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 489	Sourced
Light	empty	7 / 9 · half-light to light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 489	Not on the record
Nitrogen fixation	High	High · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09 TRY 7.0 datasets 71, 444	Sourced
Ph maximum	pH 7	No source recorded	Source not recorded
Ph minimum	pH 6	No source recorded	Source not recorded
Soil nutriments	5 / 9 · intermediate (mesotrophic)	5 / 9 · intermediate (mesotrophic) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 489	Sourced
Soil salinity	0 / 9 · absent from saline soils	0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 242, 489	Sourced
Other
Soil ph indicator	—	5 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 489	Not on the record
Temperature indicator	—	6 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 203, 242	Not on the record

Vicia sativa subsp. nigra Ehrh., 1780 39% complete

No common name

Data sources

Vicia sativa subsp. nigra Ehrh., 1780 39% complete

No common name

.fa-secondary{opacity:.4} Data sources

Data sources