Data sources

Each value Trefle shows for Catapodium rigidum, 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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Sourced12 Differs from sources2 Source not recorded9 Not on the record7 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	(L.) C.E.Hubb.	No source recorded	Source not recorded
Bibliography	J.G.Dony, Fl. Bedfordshire: 437 (1953)	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	1953	No source recorded	Source not recorded
Descriptive
Common name	Fern grass	No source recorded	Source not recorded
Observations	Macaronesia, Europe to Iran and Djibouti	No source recorded	Source not recorded
Morphology
Average height	13 cm	12.5 cm · TRY Plant Trait Database · Measured · 13 observations · 2026-10-09 TRY 7.0 datasets 25, 116, 164, 174, 175, 178, 272, 474, 600, 882, 902, 918	Differs from sources
Biological type	therophyte	therophyte · TRY Plant Trait Database · Measured · 13 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 164, 174, 175, 178, 272, 600, 918	Sourced
Flower color	green	green · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Foliage texture	empty	coarse · 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 · 4 observations · 2026-10-09 TRY 7.0 datasets 4, 600, 882	Sourced
Growth habit	Graminoid	Graminoid · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Maximum height	20 cm	20 cm · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 25, 116, 164, 174, 175, 178, 272, 474, 600, 882, 902, 918	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	may, jun, jul	apr, may · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 4, 600	Differs from sources
Duration	annual	annual · TRY Plant Trait Database · Measured · 20 observations · 2026-10-09 TRY 7.0 datasets 4, 25, 71, 110, 164, 175, 178, 272, 460, 534, 882, 918	Sourced
Ecology
Ground humidity	3 / 12 · rather dry (xerophilous)	3 / 12 · rather dry (xerophilous) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 242	Sourced
Light	9 / 9 · full sun	9 / 9 · full sun · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 489	Sourced
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 67, 71, 444	Sourced
Soil nutriments	2 / 9 · very poor (peroligotrophic)	2 / 9 · very poor (peroligotrophic) · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 178, 242, 489	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	7 cm	7 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 474	Sourced
Usda legacy
C n ratio	empty	43.4 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 79, 272	Not on the record
Other
Propagation method	—	seed · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Soil ph indicator	—	7 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Temperature indicator	—	7 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 242, 489	Not on the record

Catapodium rigidum (L.) C.E.Hubb., 1953 37% complete

Fern grass

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Data sources