Data sources

Each value Trefle shows for Romulea columnae, 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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Sourced2 Differs from sources3 Source not recorded13 Not on the record5 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Sebast. & Mauri	No source recorded	Source not recorded
Bibliography	Fl. Roman. Prodr.: 18 (1818)	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	1818	No source recorded	Source not recorded
Descriptive
Common name	Sand-crocus	No source recorded	Source not recorded
Observations	Macaronesia, W. Europe to Medit.	No source recorded	Source not recorded
Morphology
Biological type	geophyte	geophyte · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 174, 178	Sourced
Flower color	white, blue	No source recorded	Source not recorded
Maximum height	26 cm	25.5 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 178, 881	Differs from sources
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	empty	perennial · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Ecology
Atmospheric humidity	5 / 9 · medium air humidity	No source recorded	Source not recorded
Ground humidity	empty	4 / 12 · moderately dry (meso-xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Light	8 / 9 · light	9 / 9 · full sun · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Differs from sources
Ph maximum	pH 5.5	No source recorded	Source not recorded
Ph minimum	pH 5	No source recorded	Source not recorded
Soil nutriments	3 / 9 · poor (oligotrophic)	2 / 9 · very poor (peroligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Differs from sources
Soil salinity	0 / 9 · absent from saline soils	0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Sourced
Usda legacy
C n ratio	empty	23.2 · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 881	Not on the record
Other
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Soil ph indicator	—	5 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record

Romulea columnae Sebast. & Mauri, 1818 27% complete

Sand-crocus

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Data sources