Data sources

Each value Trefle shows for Arctotheca calendula, 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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Sourced6 Differs from sources2 Source not recorded10 Not on the record1 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	(L.) Levyns	No source recorded	Source not recorded
Bibliography	J. S. African Bot. 8: 284 (1942)	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	1942	No source recorded	Source not recorded
Descriptive
Common name	African marigold	No source recorded	Source not recorded
Family common name	Aster family	No source recorded	Source not recorded
Observations	Cape Prov. to Lesotho and KwaZulu-Natal	No source recorded	Source not recorded
Morphology
Average height	27 cm	26.6 cm · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09 TRY 7.0 datasets 301, 500, 598, 882	Differs from sources
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 500, 882	Sourced
Flower color	yellow	blue, green, orange, purple, yellow · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 882	Differs from sources
Fruit color	brown	brown · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced
Fruit shape	achene	achene · TRY Plant Trait Database · Measured · 5 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	No source recorded 1 earlier or rejected value Rejected 12.77 cm · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09 TRY 7.0 datasets 301, 500, 598, 882 below the average height (27 cm) of the same record	Not on the record
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	annual, perennial	annual, perennial · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09 TRY 7.0 datasets 301, 460, 882	Sourced
Ecology
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 882	Sourced

Arctotheca calendula (L.) Levyns, 1942 27% complete

African marigold

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Data sources