Data sources

Each value Trefle shows for Glyceria maxima, 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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Sourced9 Differs from sources3 Source not recorded14 Not on the record7 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	(Hartm.) Holmb.	No source recorded	Source not recorded
Bibliography	Bot. Not. 1919: 97 (1919)	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	1919	No source recorded	Source not recorded
Descriptive
Common name	Reed sweet grass	No source recorded	Source not recorded
Observations	Europe to Xinjiang	No source recorded	Source not recorded
Morphology
Average height	140 cm	140.4 cm · TRY Plant Trait Database · Measured · 15 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 88, 90, 116, 174, 178, 500, 706, 818, 882, 897, 898, 918	Differs from sources
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 174, 178, 500, 918	Sourced
Flower color	green	No source recorded	Source not recorded
Foliage texture	empty	fine · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 4	Not on the record
Fruit shape	caryopsis	caryopsis · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 4, 882	Sourced
Growth habit	Graminoid	No source recorded	Source not recorded
Maximum height	180 cm	180 cm · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 25, 28, 88, 90, 116, 174, 178, 500, 706, 818, 882, 897, 898, 918	Sourced
Sexuality	hermaphrodite	hermaphrodite · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Bloom months	jun, jul, aug	feb, jul · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 4, 174	Differs from sources
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 15 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 178, 818, 882, 918	Sourced
Ecology
Atmospheric humidity	8 / 9 · very humid air	No source recorded	Source not recorded
Ground humidity	empty	10 / 12 · amphibious all year, base always under water (permanent helophyte) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	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 169	Differs from sources
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 71, 445	Sourced
Ph maximum	pH 8	No source recorded	Source not recorded
Ph minimum	pH 7.5	No source recorded	Source not recorded
Soil nutriments	9 / 9 · extremely rich (hypereutrophic)	9 / 9 · extremely rich (hypereutrophic) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 169, 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 178, 242	Sourced
Cultivation
Minimum root depth	56 cm	56 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 818	Sourced
Usda legacy
C n ratio	empty	21.2 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 88, 90	Not on the record
Other
Propagation method	—	vegetative · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Soil ph indicator	—	8 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Not on the record
Temperature indicator	—	5 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 242	Not on the record

Glyceria maxima (Hartm.) Holmb., 1919 43% complete

Reed sweet grass

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Data sources