Data sources

Each value Trefle shows for Cotula australis, 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 Source not recorded10 Not on the record4 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	Hook.f.	No source recorded	Source not recorded
Bibliography	Fl. Nov.-Zel. 1: 128 (1852)	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	1852	No source recorded	Source not recorded
Descriptive
Common name	Annual buttonweed	No source recorded	Source not recorded
Family common name	Aster family	No source recorded	Source not recorded
Observations	Zimbabwe to S. Africa, Madagascar, Australasia	No source recorded	Source not recorded
Morphology
Average height	10 cm	10 cm · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 28, 598, 882	Sourced
Biological type	therophyte	therophyte · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Flower color	empty	orange, white, yellow · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 882	Not on the record
Fruit color	empty	green · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 882	Not on the record
Fruit shape	achene	achene · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Growth habit	Forb/herb	Forb/herb · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Maximum height	empty	12 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 28, 598, 882	Not on the record
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	annual, perennial	annual, perennial · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Ecology
Atmospheric humidity	7 / 9 · humid air	7 / 9 · humid air · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Light	8 / 9 · light	8 / 9 · light · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Ph maximum	pH 7.5	pH 7.5 · Earlier Trefle data · Inferred · 2026-10-19 value present before provenance tracking (2022 import), no source recorded derived from a Baseflor soil reaction class by the 2022 import, a class not a measurement	Sourced
Ph minimum	pH 7	pH 7 · Earlier Trefle data · Inferred · 2026-10-19 value present before provenance tracking (2022 import), no source recorded derived from a Baseflor soil reaction class by the 2022 import, a class not a measurement	Sourced
Soil nutriments	7 / 9 · rich (eutrophic)	7 / 9 · rich (eutrophic) · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Soil salinity	3 / 9 · slightly saline (oligohaline)	3 / 9 · slightly saline (oligohaline) · Earlier Trefle data · Reported · 2026-10-19 value present before provenance tracking (2022 import), no source recorded	Sourced
Other
Halophyte status	—	Moderate · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 882	Not on the record

Cotula australis Hook.f., 1852 35% complete

Annual buttonweed

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Data sources