Data sources

Each value Trefle shows for Melilotus officinalis, 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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Sourced14 Differs from sources1 Source not recorded17 Not on the record9 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Pall.	No source recorded	Source not recorded
Bibliography	Fl. Franç. 2: 594 (1779)	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	1779	No source recorded	Source not recorded
Descriptive
Common name	Yellow sweetclover	No source recorded	Source not recorded
Observations	Europe to W. Himalaya and Arabian Pen.	No source recorded	Source not recorded
Morphology
Average height	50 cm	50 cm · TRY Plant Trait Database · Measured · 69 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 50, 66, 92, 133, 164, 178, 203, 419, 421, 500, 863, 866, 882, 897, 918	Sourced
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 164, 174, 175, 178, 500, 918	Sourced
Flower color	yellow	yellow · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 4, 92, 882	Sourced
Flower conspicuous	true	No source recorded	Source not recorded
Foliage color	empty	green · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Foliage texture	coarse	No source recorded	Source not recorded
Fruit color	brown	brown · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 92, 882	Sourced
Fruit conspicuous	false	No source recorded	Source not recorded
Fruit shape	legume	legume · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 4, 882	Sourced
Growth form	Single Crown	No source recorded	Source not recorded
Growth habit	Forb/herb	No source recorded	Source not recorded
Growth rate	Rapid	Rapid · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Maximum height	150 cm	150 cm · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 50, 66, 92, 133, 164, 178, 203, 419, 421, 500, 863, 866, 882, 897, 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	false	No source recorded	Source not recorded
Phenology
Bloom months	feb, may, jun	feb, may, jun · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09 TRY 7.0 datasets 4, 66, 163, 174, 203	Sourced
Duration	annual, biennial, perennial	annual, biennial, perennial · TRY Plant Trait Database · Measured · 33 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 28, 71, 92, 164, 178, 203, 460, 818, 882, 918, 925	Sourced
Ecology
Atmospheric humidity	4 / 9 · moderately dry air	No source recorded	Source not recorded
Ground humidity	4 / 12 · moderately dry (meso-xerophilous)	4 / 12 · moderately dry (meso-xerophilous) · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 178, 203, 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	High	High · TRY Plant Trait Database · Measured · 11 observations · 2026-10-09 TRY 7.0 datasets 66, 71, 92, 444, 445	Sourced
Ph maximum	pH 8.2	No source recorded	Source not recorded
Ph minimum	pH 6.5	No source recorded	Source not recorded
Soil nutriments	5 / 9 · intermediate (mesotrophic)	4 / 9 · rather poor (meso-oligotrophic) · 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 · 3 observations · 2026-10-09 TRY 7.0 datasets 174, 178, 242	Sourced
Cultivation
Minimum root depth	74 cm	74 cm · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09 TRY 7.0 datasets 92, 818	Sourced
Usda legacy
C n ratio	empty	9.4 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 412	Not on the record
Other
Human usage type	—	fodder, forage · TRY Plant Trait Database · Reported · 1 observation · 2026-10-09 TRY 7.0 datasets 92, 414	Not on the record
Propagation method	—	seed · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 92, 174	Not on the record
Salt tolerance	—	Medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 92, 174	Not on the record
Soil ph indicator	—	8 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Not on the record
Temperature indicator	—	6 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 203	Not on the record

Melilotus officinalis Pall., 1779 56% complete

Yellow sweetclover

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Data sources