Fremont County (WY footprint); partial normalized coverage · 2011-02-25
The source identifies itself as the Fremont County Firewise Plant List. FireApproved publishes its 92 exact source owners as Fremont County regional context. No methodology, current county endorsement, statewide Wyoming scope, or site-specific suitability is inferred.
Southern Idaho (ID footprint); partial normalized coverage · 2013-11-08
The official database labels itself "For Southern Idaho" and describes Idaho residents at the urban-rangeland interface. FireApproved publishes 419 existing plant owners that cite its scored rows. This bounded Southern Idaho scope is regional context, not statewide coverage or a conclusion that the score transfers unchanged to every Idaho site.
New Mexico Forestry Division publishes this as its FireWise Plant List for New Mexico. FireApproved accounts for all 140 printed rows and publishes 95 exact same-rank owners already represented in the directory; 29 exact taxa without an existing record, 14 unresolved spellings or higher-rank matches, one compound taxon cell, and one species row whose only apparent owner has an infraspecific printed identity remain held. Every published row retains the source's Y, N, ?, or blank elevation cells. Publication scope does not erase those elevation limits or establish suitability for every New Mexico site.
The October 2023 joint Pacific Northwest Extension publication explicitly names Oregon, Washington, and Idaho and publishes more than 150 plant profiles. FireApproved has normalized 155 exact plant records from the source; publication scope does not assert that every listed plant suits every site within the three states.
Sun City Texas, Georgetown (TX footprint); partial normalized coverage · 2015-01-14
The guide is authored for the Sun City Texas community in Georgetown. FireApproved publishes 142 exact owners only as community-level context. It is an archived HOA exhibit with unknown rating lineage, not a current statewide Texas source or an independent Tier 1 determination.
Arizona at or above 3,000 feet (AZ footprint); partial normalized coverage · 2011-12-01
AZ1289 is explicitly limited to Arizona elevations of 3,000 feet and higher. FireApproved publishes 69 exact owners as regional Arizona context, retaining every water and elevation condition. It is never promoted to statewide low-desert guidance or an independent Tier 1 vote.
University of Nevada Cooperative Extension compiled plants suited to Nevada climate zones and reported favorably by at least two upstream firewise lists. FireApproved publishes 126 exact source owners at Nevada publication scope. The source explicitly makes no independent flammability determination, so these rows remain corroborative.
2. Why this plant is relevant here
State distribution
Documented in AZ, CO, ID, MT, NM, NV, OR, TX, UT, WA, WY.
Native range
Current cited native range in AZ, CO, ID, MT, NM, NV, OK, TX, UT, WY.
Introduced / established
USDA hardiness
2 applicable cited hardiness statements overlap but have different boundaries; compare each complete source row.
3. Legal, ecological, and broader status
Legal-list status
Seed-list status
Reported invasive here
Broader regional context
Federal context
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.
Native and introduced range evidence
These are exact U.S. botanical-area records from the cited range source. Native and
introduced describe biogeographic relationship, not fire performance or planting approval.
Doubtful and extinct rows stay visible but do not count as current presence.
The lossless worldwide derivative is retained once in the research corpus; object pages repeat only exact U.S. areas needed by the local lens. The JSON twin carries the same page assertions.
Plant hardiness evidence
These values describe the plant source. Your ZIP zone comes from the separate 2023 USDA
Plant Hardiness Zone Map. Whole-zone values stay whole-zone, and a single unresolved value
is not treated as a tolerance range. Different source boundaries stay separate: overlapping
statements are compared independently, while only ranges with no shared zone are called a conflict.
Source location: PlantCharacteristics record 92794, Temperature, Minimum (°F).
Where its sources say to plant it
Placement rules below use each source's own distances or named zones, tied to its rating.
They are not interchangeable with the directory's current Zone 0 guidance.
Fire Resistance of Plants Master Database: plantable at 50' from home [Idaho minimum planting distance] (mid-scale rating)
Fire-resistant plant profile galleries: Bigtooth maple — Acer grandidentatum [osu-2023-trees-gallery] (with its recommendation)
Firewise Plant Guide: Hardwood Trees [Sun City plant-table sections] (with its recommendation)
FireWise Plant List for New Mexico: PDF page 3, Trees and Large Shrubs, p3-r02 [nm-emnrd-firewise-table-row] (with its recommendation)
The evidence
Grouped by what each source concluded. Primary evidence rated the plant itself
(a lab, field program, or original curation); corroboration compiled or
republished another source's rating and resolves to its root lineage.
“Fremont County Firewise Plant List — Acer grandidentatum — Wasatch Maple”
Listed in the source's Large Shrubs and Trees section; the page describes its listed Firewise plants as generally low-growing, low-debris, and relatively moist.
The table rates Maple, Big-toothed or Red — Acer grandidentatum or A. rubrum low for flammability hazard, defined as the ease a plant can burn at high temperatures for a prolonged time.
FireWise Plant List for New Mexico — New Mexico Energy, Minerals and Natural Resources Department, Forestry Division · 2003 Forestry Division PDF · original sourceCorroborationCompilationlineage: csu-nmsu-firewise
“FireWise Plant List for New Mexico”
Listed as Acer grandidentatum (Big-tooth maple) in Trees and Large Shrubs. Printed elevation cells: 4,000 ft=?, 5,000 ft=Y, 6,000 ft=Y, 7,000 ft=Y, 8,000 ft=Y, 9,000+ ft=?. Water need: M-H; sun/shade: S/PS; mature height: 10-20’; approximate bloom: n/a.
6 cited rows from this source; its identity, lineage and tier are stated once.
Primary study Fletcher2007: Fletcher, T. H., Pickett, B. M., Smith, S. G., Spittle, G. S., Woodhouse, M. M., Haake, E., & Weise, D. R. (2007). Effects of moisture on ignition behavior of moist California chaparral and Utah leaves. Combustion Science and Technology, 179, 1183-1203.
Shared row context: Ignitability measurement; plant part leaves; fuel live; predrying no; device flat flame burner; site Fletcher2007-1; sampling ND.
“temperature at flaming (°C): 239.31”
FLAMITS record 3344.
“time to flaming (s): 28.2”
FLAMITS record 3350.
Primary study Smith2005: Smith, S. G. (2005). Effects of Moisture on Combustion Characteristics of Live California Chaparral and Utah Foliage. Master dissertations. Brigham Young University - Provo.
Shared row context: Ignitability measurement; plant part leaves; fuel live; predrying no; device flat flame burner; site Smith2005-1; sampling ND.
“temperature at flaming (°C): 386”
FLAMITS record 16703.
“time to flaming (s): 1.5”
FLAMITS record 16704.
Primary study Pickett2010: Pickett, B. M., Isackson, C., Wunder, R., Fletcher, T. H., Butler, B. W., & Weise, D. R. (2010). Experimental measurements during combustion of moist individual foliage samples. International Journal of Wildland Fire, 19, 153-162 .
Shared row context: Combustibility measurement; plant part twigs; fuel live; predrying no; device flat flame burner; site Pickett2010-2; sampling ND.
