Data sources

Each value Trefle shows for Helianthus pauciflorus subsp. pauciflorus, 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 sources1 Source not recorded9 Not on the record2 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Nutt.	No source recorded	Source not recorded
Bibliography	Gen. N. Amer. Pl. 2: 177 (1818)	No source recorded	Source not recorded
Rank	ssp	No source recorded	Source not recorded
Status	accepted	No source recorded	Source not recorded
Year	1818	No source recorded	Source not recorded
Descriptive
Family common name	Aster family	No source recorded	Source not recorded
Observations	Canada to N. & EC. U.S.A.	No source recorded	Source not recorded
Morphology
Average height	76 cm	76.45 cm · TRY Plant Trait Database · Measured · 12 observations · 2026-10-09 TRY 7.0 datasets 7, 671, 866	Differs from sources
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 918	Sourced
Growth habit	Forb/herb	No source recorded	Source not recorded
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 432, 818, 918	Sourced
Ecology
Nitrogen fixation	empty	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 71	Not on the record
Cultivation
Minimum root depth	empty	127 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 432	Not on the record

Helianthus pauciflorus subsp. pauciflorus Nutt., 1818 14% complete

No common name

Data sources

Helianthus pauciflorus subsp. pauciflorus Nutt., 1818 14% complete

No common name

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

Data sources