Data sources

Each value Trefle shows for Panicum virgatum, 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 Differs from sources1 Source not recorded8 Not on the record10 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	L.	No source recorded	Source not recorded
Bibliography	Sp. Pl.: 59 (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	Blackwell switch grass	No source recorded	Source not recorded
Observations	N. America to Honduras, Bermuda, Cuba	No source recorded	Source not recorded
Morphology
Average height	100 cm	100.5 cm · TRY Plant Trait Database · Measured · 99 observations · 2026-10-09 TRY 7.0 datasets 28, 66, 92, 221, 327, 335, 353, 415, 424, 569, 664, 818, 853, 866, 925	Differs from sources
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 220 observations · 2026-10-09 TRY 7.0 datasets 925	Sourced
Flower color	empty	yellow · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Foliage color	empty	green · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Foliage texture	empty	coarse · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Fruit color	empty	brown · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Growth rate	empty	Rapid · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Phenology
Bloom months	jun	jun · TRY Plant Trait Database · Measured · 54 observations · 2026-10-09 TRY 7.0 datasets 66, 163, 415	Sourced
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 240 observations · 2026-10-09 TRY 7.0 datasets 28, 66, 92, 110, 424, 432, 460, 818, 925	Sourced
Ecology
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 19 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 66, 67, 71, 96, 130, 444, 445	Sourced
Cultivation
Minimum root depth	274 cm	274 cm · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 92, 432, 818	Sourced
Usda legacy
C n ratio	empty	24.6 · TRY Plant Trait Database · Measured · 38 observations · 2026-10-09 TRY 7.0 datasets 70, 79, 221, 412, 424	Not on the record
Other
Human usage type	—	fodder · TRY Plant Trait Database · Reported · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Propagation method	—	seed · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Salt tolerance	—	Medium · 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 · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record

Panicum virgatum L., 1753 18% complete

Blackwell switch grass

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Data sources