Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Centaurea solstitialis has three rows from CO, UT, and NV on the legal-list. The seed list contains twelve additional entries, preserving the two regulatory channels and their different counts.
The fire-source pack is limited evidence, and one ecological invasive report is present. The evidence table exposes that source depth without turning the ecological report, legal rows, or seed entries into interchangeable claims.
The related plants, range account, and genus collection remain navigation for comparison and geography. They do not alter the three legal-list rows, twelve seed-list rows, or single ecological report recorded for this species.
Form
perennial
Rated in
Yavapai County, Arizona
On this lot
1. Fire evidence and conditions
Fire evidence
Mixed evidence — location does not change the cited classification.
Fire-performance conditions
Fire ecology context
Placement evidence
Evidence regions
Yavapai County, Arizona
Maintenance
Typed publication scope: 1 scope across 1 cited fire source
Yavapai County (AZ footprint); partial normalized coverage · 2025-03-14
University of Arizona Cooperative Extension authors Bulletin 34 for Yavapai County. FireApproved publishes 198 exact source owners from its resistant and prone tables and keeps the county boundary visible. County publication scope is regional Arizona context, never statewide scope.
2. Why this plant is relevant here
State distribution
Documented in AZ, CA, CO, CT, FL, IA, ID, IL, IN, KS, KY, MA, MD, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY.
Native range
Introduced / established
41 sourced range or established records. This is not an invasive warning.
USDA hardiness
3. Legal, ecological, and broader status
Legal-list status
3 legal-list records; the Place chip matches exact scope.
Seed-list status
12 state noxious-weed seed records; the Place chip matches exact scope.
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.
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.
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.
Listed as Star Thistle — Centaurea solstitialis. The bulletin says fire-resistant plants tend to resist ignition when irrigated and maintained, while fire-prone plants may ignite readily and burn intensely.
