Data sources

Each value Trefle shows for Poa pratensis, 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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Sourced11 Differs from sources4 Source not recorded16 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.: 67 (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	Smooth meadow grass	No source recorded	Source not recorded
Observations	Subarctic to Temp. Northern Hemisphere and N. Mexico	No source recorded	Source not recorded
Morphology
Average height	28 cm	27.75 cm · TRY Plant Trait Database · Measured · 412 observations · 2026-10-09 TRY 7.0 datasets 7, 25, 28, 45, 66, 76, 80, 86, 92, 116, 133, 164, 174, 175, 178, 193, 203, 310, 335, 347, 353, 428, 468, 500, 519, 569, 589, 866, 882, 897, 917, 918, 925, 926	Differs from sources
Biological type	geophyte	geophyte · TRY Plant Trait Database · Measured · 117 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 164, 174, 175, 178, 203, 264, 500, 918, 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
Flower conspicuous	false	No source recorded	Source not recorded
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	fine	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	caryopsis	caryopsis · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 4, 882	Sourced
Growth form	Rhizomatous	No source recorded	Source not recorded
Growth habit	Graminoid	No source recorded	Source not recorded
Growth rate	Rapid	Moderate · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Differs from sources
Maximum height	80 cm	80 cm · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09 TRY 7.0 datasets 7, 25, 28, 45, 66, 76, 80, 86, 92, 116, 133, 164, 174, 175, 178, 193, 203, 310, 335, 347, 353, 428, 468, 500, 519, 569, 589, 866, 882, 897, 917, 918, 925, 926	Sourced
Sexuality	hermaphrodite	hermaphrodite · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4, 365	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Bloom months	jan, apr, may, jun, jul	jan, apr, may, jun, jul · TRY Plant Trait Database · Measured · 22 observations · 2026-10-09 TRY 7.0 datasets 4, 45, 80, 163, 174, 203, 264, 833	Sourced
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 163 observations · 2026-10-09 TRY 7.0 datasets 4, 7, 25, 28, 71, 86, 92, 110, 164, 175, 178, 193, 203, 264, 365, 432, 460, 818, 882, 918, 925	Sourced
Ecology
Atmospheric humidity	5	No source recorded	Source not recorded
Ground humidity	5	5 · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 178, 489	Sourced
Light	8	7 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 489	Differs from sources
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 34 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 67, 71, 96, 110, 130, 193, 444, 445, 822	Sourced
Ph maximum	pH 7.5	No source recorded	Source not recorded
Ph minimum	pH 5.8	No source recorded	Source not recorded
Soil nutriments	6	6 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Sourced
Soil salinity	0	0 · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Sourced
Cultivation
Minimum root depth	36 cm	36 cm · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09 TRY 7.0 datasets 92, 339, 432, 608, 818	Sourced
Usda legacy
C n ratio	empty	26.7 · TRY Plant Trait Database · Measured · 50 observations · 2026-10-09 TRY 7.0 datasets 7, 70, 76, 193, 347, 412, 468	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 · 2 observations · 2026-10-09 TRY 7.0 datasets 92, 174	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 · 6 observations · 2026-10-09 TRY 7.0 datasets 92, 174	Not on the record
Soil ph indicator	—	6 · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 178, 203, 489	Not on the record
Temperature indicator	—	5 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 203, 489	Not on the record

Poa pratensis 54% complete

Smooth meadow grass

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

Data sources