Data sources

Each value Trefle shows for Petasites paradoxus, 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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Sourced2 Differs from sources3 Source not recorded10 Not on the record9 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	(Retz.) Baumg.	No source recorded	Source not recorded
Bibliography	Enum. Stirp. Transsilv. 3: 94 (1817)	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	1817	No source recorded	Source not recorded
Descriptive
Common name	Alpine butterbur	No source recorded	Source not recorded
Family common name	Aster family	No source recorded	Source not recorded
Observations	Europe	No source recorded	Source not recorded
Morphology
Average height	37 cm	36.75 cm · TRY Plant Trait Database · Measured · 12 observations · 2026-10-09 TRY 7.0 datasets 25, 164, 251, 807	Differs from sources
Flower color	white, purple	white · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4	Differs from sources
Foliage texture	empty	medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Not on the record
Fruit shape	empty	nut · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Not on the record
Maximum height	60 cm	60 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 25, 164, 251, 807	Sourced
Sexuality	empty	dioecious · 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	apr, may	apr\|may · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Differs from sources
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4, 164	Sourced
Ecology
Ground humidity	empty	6 / 12 · moist (meso-hygrophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record
Nitrogen fixation	empty	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 71	Not on the record
Soil nutriments	empty	3 / 9 · poor (oligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record
Soil salinity	empty	0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record
Other
Soil ph indicator	—	8 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record
Temperature indicator	—	3 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record

Petasites paradoxus (Retz.) Baumg., 1817 20% complete

Alpine butterbur

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

Data sources