Data sources

Each value Trefle shows for Rudbeckia laciniata, 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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Sourced8 Differs from sources3 Source not recorded17 Not on the record11 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	L.	No source recorded	Source not recorded
Bibliography	Sp. Pl.: 906 (1753)	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	1753	No source recorded	Source not recorded
Descriptive
Common name	Tall coneflower	No source recorded	Source not recorded
Family common name	Aster family	No source recorded	Source not recorded
Observations	C. & E. Canada to C. & E. U.S.A.	No source recorded	Source not recorded
Morphology
Average height	112 cm	111.5 cm · TRY Plant Trait Database · Measured · 22 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 92, 116, 164, 174, 203, 500, 918, 925	Differs from sources
Biological type	geophyte	geophyte · TRY Plant Trait Database · Measured · 164 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 164, 174, 203, 500, 918, 925	Sourced
Flower color	yellow	yellow · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 4, 92	Sourced
Flower conspicuous	true	No source recorded	Source not recorded
Foliage color	empty	green, grey · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Foliage texture	coarse	medium · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4, 71, 92	Differs from sources
Fruit color	empty	brown · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Fruit conspicuous	false	No source recorded	Source not recorded
Fruit shape	empty	nut · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Not on the record
Growth form	Rhizomatous	No source recorded	Source not recorded
Growth habit	Subshrub, Forb/herb	No source recorded	Source not recorded
Growth rate	Rapid	Rapid · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Maximum height	190 cm	190 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 92, 116, 164, 174, 203, 500, 918, 925	Sourced
Sexuality	empty	hermaphrodite · 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	feb, jul	feb, jul · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 4, 174, 203	Sourced
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 166 observations · 2026-10-09 TRY 7.0 datasets 4, 28, 92, 164, 203, 460, 918, 925	Sourced
Ecology
Atmospheric humidity	7 / 9 · humid air	No source recorded	Source not recorded
Ground humidity	empty	8 / 12 · very wet, flooded several months a year (hydrophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 203	Not on the record
Light	8 / 9 · light	7 / 9 · half-light to light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 489	Differs from sources
Nitrogen fixation	empty	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 71	Not on the record
Ph maximum	pH 7	No source recorded	Source not recorded
Ph minimum	pH 4.5	No source recorded	Source not recorded
Soil nutriments	7 / 9 · rich (eutrophic)	7 / 9 · rich (eutrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Sourced
Soil salinity	0 / 9 · absent from saline soils	0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 242, 489	Sourced
Cultivation
Minimum root depth	empty	30 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Other
Salt tolerance	—	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 92, 174	Not on the record
Soil ph indicator	—	7 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 203	Not on the record
Temperature indicator	—	7 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 203, 242	Not on the record

Rudbeckia laciniata L., 1753 47% complete

Tall coneflower

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Data sources