Data sources

Each value Trefle shows for Senna siamea, 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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Sourced7 Source not recorded10 Not on the record3 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	(Lam.) H.S.Irwin & Barneby	No source recorded	Source not recorded
Bibliography	Mem. New York Bot. Gard. 35: 98 (1982)	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	1982	No source recorded	Source not recorded
Descriptive
Common name	Ironwood cassia	No source recorded	Source not recorded
Observations	Sri Lanka, Indo-China	No source recorded	Source not recorded
Morphology
Average height	785 cm	785 cm · TRY Plant Trait Database · Measured · 22 observations · 2026-10-09 TRY 7.0 datasets 214, 668, 699, 873, 882, 909	Sourced
Biological type	phanerophyte	phanerophyte · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 350	Sourced
Flower color	yellow	yellow · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 350, 668	Sourced
Fruit shape	legume	legume · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 350, 498, 882	Sourced
Growth habit	Tree	No source recorded	Source not recorded
Inflorescence type	raceme	raceme · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 350	Sourced
Maximum height	2400 cm	2400 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 214, 668, 699, 873, 882, 909	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 28, 818, 882	Sourced
Ecology
Nitrogen fixation	empty	High · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 445	Not on the record
Cultivation
Minimum root depth	empty	90 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 432	Not on the record
Usda legacy
C n ratio	empty	26 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 981	Not on the record

Senna siamea (Lam.) H.S.Irwin & Barneby, 1982 25% complete

Ironwood cassia

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Data sources