Data sources

Each value Trefle shows for Zizia aptera, 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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Sourced5 Source not recorded10 Not on the record1 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	(A.Gray) Fernald	No source recorded	Source not recorded
Bibliography	Rhodora 41: 441 (1939)	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	1939	No source recorded	Source not recorded
Descriptive
Common name	Meadow zizia	No source recorded	Source not recorded
Family common name	Carrot family	No source recorded	Source not recorded
Observations	Canada to U.S.A.	No source recorded	Source not recorded
Morphology
Average height	49 cm	49 cm · TRY Plant Trait Database · Measured · 13 observations · 2026-10-09 TRY 7.0 datasets 415, 925	Sourced
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 208 observations · 2026-10-09 TRY 7.0 datasets 925	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
Vegetable	false	No source recorded	Source not recorded
Phenology
Bloom months	apr	apr · TRY Plant Trait Database · Measured · 52 observations · 2026-10-09 TRY 7.0 datasets 415	Sourced
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 209 observations · 2026-10-09 TRY 7.0 datasets 28, 925	Sourced
Usda legacy
C n ratio	empty	21.6 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 70	Not on the record

Zizia aptera (A.Gray) Fernald, 1939 20% complete

Meadow zizia

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

Data sources