Data sources

Each value Trefle shows for Ceanothus oliganthus, 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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Sourced3 Differs from sources1 Source not recorded8 Not on the record1 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Nutt.	No source recorded	Source not recorded
Bibliography	J.Torrey & A.Gray, Fl. N. Amer. 1: 266 (1838)	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	1838	No source recorded	Source not recorded
Descriptive
Common name	Hairy ceanothus	No source recorded	Source not recorded
Observations	S. California to NW. Mexico	No source recorded	Source not recorded
Morphology
Average height	305 cm	305 cm · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 20, 241, 818, 909	Sourced
Maximum height	319 cm	318.75 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 20, 241, 818, 909	Differs from sources
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 28, 818	Sourced
Ecology
Nitrogen fixation	High	High · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 94, 444, 822	Sourced
Cultivation
Minimum root depth	empty	183 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 818	Not on the record

Ceanothus oliganthus Nutt., 1838 14% complete

Hairy ceanothus

.fa-secondary{opacity:.4} Data sources

Data sources