Data sources

Each value Trefle shows for Viola labradorica, 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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Sourced1 Source not recorded8 Not on the record2 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Schrank	No source recorded	Source not recorded
Bibliography	Denkschr. Königl.-Baier. Bot. Ges. Regensburg 1(2): 12 (1818)	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	1818	No source recorded	Source not recorded
Descriptive
Common name	American dog violet	No source recorded	Source not recorded
Observations	Subarctic America to C. & E. U.S.A.	No source recorded	Source not recorded
Morphology
Average height	empty	5 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 251	Not on the record
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 432, 818	Sourced
Cultivation
Minimum root depth	empty	7 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 432	Not on the record

Viola labradorica Schrank, 1818 8% complete

American dog violet

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Data sources