Data sources

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

Field	Shown	What the sources say
Core
Author	Fernald	No source recorded	Source not recorded
Bibliography	Rhodora 45: 462 (1943)	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	1943	No source recorded	Source not recorded
Descriptive
Common name	Narrowleaf false dragonhead	No source recorded	Source not recorded
Observations	C. & SE. U.S.A.	No source recorded	Source not recorded
Morphology
Average height	empty	54.9 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 415	Not on the record
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	jun	jun · TRY Plant Trait Database · Measured · 52 observations · 2026-10-09 TRY 7.0 datasets 415	Sourced

Physostegia angustifolia Fernald, 1943 12% complete

Narrowleaf false dragonhead

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

Data sources