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Arizona cypress
Cupressus arizonica var. arizonica
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
- Highly flammable — location does not change the cited classification.
- Fire-performance conditions
- 1 condition stated in cited fire-evidence rows.
- Fire ecology context
- No section-reviewed fire-ecology context is normalized.
- Placement evidence
- 2 source placement records; source schemes remain separate.
- Evidence regions
- Córdoba, southern Spain; Georgetown, Texas; Global; Mediterranean France / Provence; Virginia / Mid-Atlantic; Yavapai County, Arizona; eastern US
- Maintenance
- No sourced horticultural maintenance assertion is normalized; fire-test conditions do not supply maintenance advice.
Typed publication scope: 3 scopes across 3 cited fire sources
2. Why this plant is relevant here
- State distribution
- Documented in AZ, CA, DC, DE, MD, NJ, NM, NV, OH, PA, PR, TX, UT, WV.
- 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
- Documented minimum 5b; no upper limit is documented.
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
- tree
- USDA hardiness
- Minimum 5b; upper limit not documented
- Mature height
- ~50 ft
- Light
- Full sun
- Water need
- low
- Grows in
- AZ, CA, DC, DE, MD, NJ, NM, NV +6
- Rated in
- Córdoba, southern Spain; Georgetown, Texas; Global; Mediterranean France / Provence +3
- Family
- Cupressaceae
- Evidence
- 41 cited sources
Plant hardiness evidence
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Eastern United States Fire Performance Plant Selector
Source prints 6 · single-value meaning unresolved
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USDA PLANTS Database — Plant Characteristics
Minimum 5b · no upper limit documented
Conditions in the fire evidence
Where its sources say to plant it
- Eastern United States Fire Performance Plant Selector: Landscape Zone 3 — 10–30 ft from the structure; thin vegetation, remove debris, and minimize plant massing
- Firewise Plant Guide: Avoid if Possible
The evidence
Recommends (1)
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Inflammabilités des espèces forestières méditerranéennes (Valette 1990)
“INRA inflammability note 1 of 5 (July-September maximum)”
Monthly inflammability notes May-April: 0, 0, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2 (epiradiator tests, INRA Avignon).
Avoids (5)
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Eastern United States Fire Performance Plant Selector
“NOT Firewise (4)”
Fragrant blue foliage. Scale needles are smooth to touch. Showy reddish or yellow exfoliating bark.
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Virginia Firescapes — Firewise Landscaping for Woodland Homes (430-300)
“H flammability”
Tolerates hot, dry conditions.
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The ignition index based on flammability of vegetation improves planning in the WUI
“Very flammable (Valette 4)”
Table 2 reports 97.7% foliar moisture, 16.48 s mean time to ignition, and 12.06 s mean flame duration across 200 live-leaf samples.
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Fire-Resistant and Fire-Prone Plants Common to Yavapai County (Bulletin 34)
“Fire-Prone Plants”
Listed as Arizona Cypress — Cupressus arizonica. The bulletin says fire-resistant plants tend to resist ignition when irrigated and maintained, while fire-prone plants may ignite readily and burn intensely.
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“high”
The table rates Cypress, Arizona — Cypressus arizonica high for flammability hazard, defined as the ease a plant can burn at high temperatures for a prolonged time.
Listed without a rating (35)
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FLAMITS: FLAMmability plant traiTS database
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“time to flaming (s): 101.73”
FLAMITS record 3654; Ignitability measurement; plant part leaves; fuel all; predrying yes; device epiradiator; site Ganteaume2018-1; sampling summer. Primary study Ganteaume2018: Ganteaume, A. (2018). Does plant flammability differ between leaf and litter bed scale? Role of fuel characteristics and consequences for flammability assessment. International Journal of Wildland Fire, 27, 342-352.
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“flaming duration (s): 274.73”
FLAMITS record 3669; Sustainability measurement; plant part leaves; fuel all; predrying yes; device epiradiator; site Ganteaume2018-1; sampling summer. Primary study Ganteaume2018: Ganteaume, A. (2018). Does plant flammability differ between leaf and litter bed scale? Role of fuel characteristics and consequences for flammability assessment. International Journal of Wildland Fire, 27, 342-352.
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“ignition frequency (%): 50”
FLAMITS record 3684; Ignitability measurement; plant part leaves; fuel all; predrying yes; device epiradiator; site Ganteaume2018-1; sampling summer. Primary study Ganteaume2018: Ganteaume, A. (2018). Does plant flammability differ between leaf and litter bed scale? Role of fuel characteristics and consequences for flammability assessment. International Journal of Wildland Fire, 27, 342-352.
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“flame propagation: 3.3”
FLAMITS record 3699; Combustibility measurement; plant part leaves; fuel all; predrying yes; device epiradiator; site Ganteaume2018-1; sampling summer. Primary study Ganteaume2018: Ganteaume, A. (2018). Does plant flammability differ between leaf and litter bed scale? Role of fuel characteristics and consequences for flammability assessment. International Journal of Wildland Fire, 27, 342-352.
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“time to flaming (s): 32.71”
FLAMITS record 3714; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2018-1; sampling summer. Primary study Ganteaume2018: Ganteaume, A. (2018). Does plant flammability differ between leaf and litter bed scale? Role of fuel characteristics and consequences for flammability assessment. International Journal of Wildland Fire, 27, 342-352.
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“flaming duration (s): 5”
FLAMITS record 3729; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2018-1; sampling summer. Primary study Ganteaume2018: Ganteaume, A. (2018). Does plant flammability differ between leaf and litter bed scale? Role of fuel characteristics and consequences for flammability assessment. International Journal of Wildland Fire, 27, 342-352.
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“ignition frequency (%): 30.5”
FLAMITS record 3744; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2018-1; sampling summer. Primary study Ganteaume2018: Ganteaume, A. (2018). Does plant flammability differ between leaf and litter bed scale? Role of fuel characteristics and consequences for flammability assessment. International Journal of Wildland Fire, 27, 342-352.
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“time to flaming (s): 39.29”
FLAMITS record 3759; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021a-1; sampling january to februaty and april to may. Primary study Ganteaume2021a: Ganteaume, A., Romero, B., Fernandez, C., Ormeño, E., & Lecareux, C. (2021). Volatile and semi-volatile terpenes impact leaf flammability: differences according to the level of terpene identification. Chemoecology, 31, 259-275.
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“maximum flame temperature (°C): 476.55”
FLAMITS record 3763; Combustibility measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021a-1; sampling january to februaty and april to may. Primary study Ganteaume2021a: Ganteaume, A., Romero, B., Fernandez, C., Ormeño, E., & Lecareux, C. (2021). Volatile and semi-volatile terpenes impact leaf flammability: differences according to the level of terpene identification. Chemoecology, 31, 259-275.
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“flaming duration (s): 9.28”
FLAMITS record 3767; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021a-1; sampling january to februaty and april to may. Primary study Ganteaume2021a: Ganteaume, A., Romero, B., Fernandez, C., Ormeño, E., & Lecareux, C. (2021). Volatile and semi-volatile terpenes impact leaf flammability: differences according to the level of terpene identification. Chemoecology, 31, 259-275.
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“temperature at flaming (°C): 360.23”
FLAMITS record 3771; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021a-1; sampling january to februaty and april to may. Primary study Ganteaume2021a: Ganteaume, A., Romero, B., Fernandez, C., Ormeño, E., & Lecareux, C. (2021). Volatile and semi-volatile terpenes impact leaf flammability: differences according to the level of terpene identification. Chemoecology, 31, 259-275.
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“time to flaming (s): 40.62”
FLAMITS record 3776; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling winter. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“time to flaming (s): 34.94”
FLAMITS record 3777; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling spring. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“time to flaming (s): 40.9”
FLAMITS record 3778; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling summer. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“maximum flame temperature (°C): 442.06”
FLAMITS record 3788; Combustibility measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling winter. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“maximum flame temperature (°C): 532.62”
FLAMITS record 3789; Combustibility measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling spring. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“maximum flame temperature (°C): 455.62”
FLAMITS record 3790; Combustibility measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling summer. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“flaming duration (s): 6.97”
FLAMITS record 3800; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling winter. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“flaming duration (s): 9.58”
FLAMITS record 3801; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling spring. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“flaming duration (s): 11.02”
FLAMITS record 3802; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Ganteaume2021b-1; sampling summer. Primary study Ganteaume2021b: Ganteaume, A., Romero, B., Ormeño, E., Lecareux, C., & Fernandez, C. (2021). Does Seasonality of Leaf Terpene Content and Moisture Content Trigger Leaf Flammability Seasonal Variation? in review, preprint.
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“time to flaming (s): 16.48”
FLAMITS record 9294; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Molina2017-1; sampling summer. Primary study Molina2017: Molina, J. R., Martín, T., Rodríguez Y Silva, F., & Herrera, M. Á. (2017). The ignition index based on flammability of vegetation improves planning in the wildland-urban interface: A case study in Southern Spain. Landscape and Urban Planning, 158, 129-138.
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“flaming duration (s): 12.06”
FLAMITS record 9312; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Molina2017-1; sampling summer. Primary study Molina2017: Molina, J. R., Martín, T., Rodríguez Y Silva, F., & Herrera, M. Á. (2017). The ignition index based on flammability of vegetation improves planning in the wildland-urban interface: A case study in Southern Spain. Landscape and Urban Planning, 158, 129-138.
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“flammability value: 4”
FLAMITS record 9330; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Molina2017-1; sampling summer. Primary study Molina2017: Molina, J. R., Martín, T., Rodríguez Y Silva, F., & Herrera, M. Á. (2017). The ignition index based on flammability of vegetation improves planning in the wildland-urban interface: A case study in Southern Spain. Landscape and Urban Planning, 158, 129-138.
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“time to flaming (s): 3.5”
FLAMITS record 11331; Ignitability measurement; plant part litter; fuel dead; predrying yes; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“maximum flame temperature (°C): 569.2”
FLAMITS record 11337; Combustibility measurement; plant part litter; fuel dead; predrying yes; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“flaming duration (s): 12.6”
FLAMITS record 11343; Sustainability measurement; plant part litter; fuel dead; predrying yes; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“temperature at flaming (°C): 382.3”
FLAMITS record 11349; Ignitability measurement; plant part litter; fuel dead; predrying yes; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“flammability value: 100”
FLAMITS record 11355; Ignitability measurement; plant part litter; fuel dead; predrying yes; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“time to flaming (s): 41.3”
FLAMITS record 11361; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“maximum flame temperature (°C): 454.2”
FLAMITS record 11368; Combustibility measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“flaming duration (s): 11.1”
FLAMITS record 11375; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“temperature at flaming (°C): 375.9”
FLAMITS record 11383; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“flammability value: 90”
FLAMITS record 11390; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Romero2019-1; sampling july. Primary study Romero2019: Romero, B., Fernandez, C., Lecareux, C., Ormeño, E., & Ganteaume, A. (2019). How terpene content affects fuel flammability of wildlandurban interface vegetation. International Journal of Wildland Fire, 28, 614.
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“flammability value: 1”
FLAMITS record 13341; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Valette1990-1; sampling june to september. Primary study Valette1990: Valette, J.-C. (1990). Flammabilities of Mediterranean forest species. Effects on the combustibility of the forest communities inflammabilités des espèces forestières méditerranéennes. Conséquences sur la combustibilité des formations forestières. Revue forestière française, 42, 76-92.
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“flammability value: 2”
FLAMITS record 13342; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Valette1990-1; sampling june to september. Primary study Valette1990: Valette, J.-C. (1990). Flammabilities of Mediterranean forest species. Effects on the combustibility of the forest communities inflammabilités des espèces forestières méditerranéennes. Conséquences sur la combustibilité des formations forestières. Revue forestière française, 42, 76-92.
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