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Yerba santa
Eriodictyon trichocalyx
Your local evidence lens
Separate evidence questions, never one approval badge
A genus split is not a placement verdict. Set a ZIP to read the local documented split.
1. Fire evidence and conditions
- Fire evidence
- Mixed evidence — location does not change the cited classification.
- Fire-performance conditions
- No test or rating condition is normalized.
- Fire ecology context
- No section-reviewed fire-ecology context is normalized.
- Placement evidence
- 1 source placement record; source schemes remain separate.
- Evidence regions
- California; Global
- Maintenance
- No sourced horticultural maintenance assertion is normalized; fire-test conditions do not supply maintenance advice.
Typed publication scope: 1 scope across 1 cited fire source
2. Why this plant is relevant here
- State distribution
- Documented in CA.
- Native range
- No current cited or legacy state native range is normalized.
- Introduced / established
- No introduced or established row is normalized; that does not prove native status.
- USDA hardiness
- No hardiness value is normalized.
3. Legal, ecological, and broader status
- Legal-list status
- Set a location for an exact legal-list result; source silence is not clearance.
- Seed-list status
- Set a location to compare the separate state noxious-weed seed layer.
- Reported invasive here
- No ecological invasive report is normalized; that does not prove noninvasiveness.
- Broader regional context
- Aggregate AK, HI, and L48 evidence is shown only as regional context, never as an exact-state finding.
- Federal context
- Federal designations remain separate from state legal-list results.
How to read this page
The status above is computed from the cited rows below: independent recommendations can support a fire-resistant result, an avoid row can produce keep-away, and disagreement stays visible as conflict. Placement notes preserve each source’s own scheme rather than translating unlike rules into one scale. This is evidence about a plant, not permission to plant it in every part of the defensible space; Zone 0 remains noncombustible.
- Form
- shrub
- Grows in
- CA
- Rated in
- California; Global
- Family
- Namaceae
- Evidence
- 4 cited sources
Where its sources say to plant it
- Defensible Space Landscaping in the Urban/Wildland Interf…: Chapter 4, Landscape Vegetation Database
The evidence
Recommends (1)
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“RECOMMENDED by 3 references for use in high fire risk areas.”
1997 Landscape Vegetation Database row: Eriodictyon trichlocalyx (Yerba santa). Preserved UCFPL transcription marker: F3.
Listed without a rating (3)
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FLAMITS: FLAMmability plant traiTS database
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“time to flaming (s): 12.1”
FLAMITS record 18317; Ignitability measurement; plant part leaves; fuel live; predrying no; device muffle furnace; site Montgomery1969-1; sampling fall 1967. Primary study Montgomery1969: Montgomery, K. R., & Cheo, P. C. (1969). Moisture and salt effects on fire retardance in plants. American Journal of Botany, 56, 10281032.
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“time to flaming (s): 9.3”
FLAMITS record 18318; Ignitability measurement; plant part leaves; fuel live; predrying no; device muffle furnace; site Montgomery1969-1; sampling fall 1967. Primary study Montgomery1969: Montgomery, K. R., & Cheo, P. C. (1969). Moisture and salt effects on fire retardance in plants. American Journal of Botany, 56, 10281032.
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“time to flaming (s): 4.8”
FLAMITS record 18319; Ignitability measurement; plant part leaves; fuel live; predrying no; device muffle furnace; site Montgomery1969-1; sampling fall 1967. Primary study Montgomery1969: Montgomery, K. R., & Cheo, P. C. (1969). Moisture and salt effects on fire retardance in plants. American Journal of Botany, 56, 10281032.
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