Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Salix fragilis appears in one legal-list row, naming OH. The state remains explicit so the crack willow listing is not presented as broader legal geography.
One ecological invasive report accompanies the regulatory source. Its role in the selected pack stays visible among the cited entries, separate from the legal-list row.
The source set remains limited evidence. Its current depth is documented in the evidence table, without filling the record with unselected test conditions or performance values.
Form
tree
Rated in
Global; Valencia, Spain / western Mediterranean
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Fire-performance conditions
Fire ecology context
Placement evidence
Evidence regions
Global; Valencia, Spain / western Mediterranean
Maintenance
2. Why this plant is relevant here
State distribution
Documented in CO, CT, DC, DE, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, MT, ND, NE, NH, NJ, NM, NY, OH, PA, RI, SD, UT, VA, VT, WA, WI, WV, WY.
Native range
Introduced / established
USDA hardiness
3. Legal, ecological, and broader status
Legal-list status
1 legal-list record; the Place chip matches exact scope.
Seed-list status
Reported invasive here
1 ecological invasive report.
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.
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.
5 cited rows from this source; its identity, lineage and tier are stated once.
“calorific value (kcal/kg): 1922.71”
FLAMITS record 1119; Combustibility measurement; plant part wood; fuel live; predrying no; device calorimeter; site Cardoso2015-1; sampling summer. Primary study Cardoso2015: Cardoso, M. B., Ladio, A. H., Dutrus, S. M., & Lozada, M. (2015). Preference and calorific value of fuelwood species in rural populations in northwestern Patagonia. Biomass and Bioenergy, 81, 514-520.
Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.
Shared row context: plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND.
