Data sources

Each value Trefle shows for Oenothera tetraptera, 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	Cav.	No source recorded	Source not recorded
Bibliography	Icon. 3: 40 (1796)	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	1796	No source recorded	Source not recorded
Descriptive
Common name	Four-wing evening-primrose	No source recorded	Source not recorded
Observations	S. Texas to NW. Venezuela and Bolivia	No source recorded	Source not recorded
Morphology
Flower color	empty	magenta, white · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 882	Not on the record
Fruit shape	capsule	capsule · TRY Plant Trait Database · Measured · 2 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	45 cm	45 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 60, 882	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced

Oenothera tetraptera Cav., 1796 16% complete

Four-wing evening-primrose

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

Data sources