Data sources

Each value Trefle shows for Thelesperma filifolium, 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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Sourced3 Source not recorded10 Not on the record1 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	(Hook.) A.Gray	No source recorded	Source not recorded
Bibliography	Hooker's J. Bot. Kew Gard. Misc. 1: 252 (1849)	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	1849	No source recorded	Source not recorded
Descriptive
Common name	Stiff greenthread	No source recorded	Source not recorded
Family common name	Aster family	No source recorded	Source not recorded
Observations	U.S.A. to NE. Mexico	No source recorded	Source not recorded
Morphology
Average height	20 cm	20 cm · TRY Plant Trait Database · Measured · 19 observations · 2026-10-09 TRY 7.0 datasets 296	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
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 66 observations · 2026-10-09 TRY 7.0 datasets 296	Sourced
Usda legacy
C n ratio	empty	16.8 · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09 TRY 7.0 datasets 296	Not on the record

Thelesperma filifolium (Hook.) A.Gray, 1849 16% complete

Stiff greenthread

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

Data sources