Data sources

Each value Trefle shows for Verbena rigida, 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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Sourced4 Source not recorded9 Not on the record1 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	Spreng.	No source recorded	Source not recorded
Bibliography	Syst. Veg. 4(2): 230 (1827)	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	1827	No source recorded	Source not recorded
Descriptive
Common name	Slender vervain	No source recorded	Source not recorded
Observations	Bolivia to Uruguay	No source recorded	Source not recorded
Morphology
Flower color	empty	blue, purple · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 882	Not on the record
Fruit shape	mericarp	mericarp · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 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	55 cm	55 cm · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09 TRY 7.0 datasets 460, 882	Sourced

Verbena rigida Spreng., 1827 16% complete

Slender vervain

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

Data sources