Data sources

Each value Trefle shows for Lotus tenuis, 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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Sourced18 Differs from sources3 Source not recorded10 Not on the record5 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	Waldst. & Kit. ex Willd.	No source recorded	Source not recorded
Bibliography	Enum. Pl.: 797 (1809)	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	1809	No source recorded	Source not recorded
Descriptive
Common name	Narrowleaf bird's-foot trefoil	No source recorded	Source not recorded
Observations	Europe to N. China, N. Africa	No source recorded	Source not recorded
Morphology
Average height	25 cm	25 cm · TRY Plant Trait Database · Measured · 11 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 71, 86, 164, 174, 500, 926	Sourced
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 13 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 164, 174, 500, 918	Sourced
Flower color	yellow	yellow · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4	Sourced
Flower conspicuous	true	true · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Foliage color	green	green · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Foliage texture	fine	medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Differs from sources
Fruit color	brown	brown · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Fruit conspicuous	false	No source recorded	Source not recorded
Fruit shape	legume	legume · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 4, 882	Sourced
Growth form	Single Crown	Single Crown · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	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
Growth rate	Moderate	Moderate · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Maximum height	45 cm	45 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 71, 86, 164, 174, 500, 926	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	jun, jul, aug, sep	jun · TRY Plant Trait Database · Measured · 4 observations · 2026-10-20 TRY 7.0 datasets 4, 174 1 earlier or rejected value Superseded feb, jun · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 4, 174	Differs from sources
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09 TRY 7.0 datasets 4, 28, 86, 164, 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	empty	7 / 12 · wet, flooded a few weeks a year (hygrophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 489	Not on the record
Light	8 / 9 · light	7 / 9 · half-light to light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 489	Differs from sources
Nitrogen fixation	High	High · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09 TRY 7.0 datasets 71, 444, 445	Sourced
Ph maximum	pH 7.9	pH 7.9 · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Ph minimum	pH 4.5	pH 4.5 · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Soil nutriments	5 / 9 · intermediate (mesotrophic)	5 / 9 · intermediate (mesotrophic) · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 174, 242, 489	Sourced
Soil salinity	4 / 9 · slightly to moderately saline (meso-oligohaline)	4 / 9 · slightly to moderately saline (meso-oligohaline) · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 174, 242, 489	Sourced
Other
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Soil ph indicator	—	8 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 174, 242	Not on the record
Temperature indicator	—	6 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record

Lotus tenuis Waldst. & Kit. ex Willd., 1809 54% complete

Narrowleaf bird's-foot trefoil

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Data sources