Helenium brevifolium
species of plant
Helenium brevifolium is a North American perennial plant in the sunflower family, commonly known as shortleaf sneezeweed. It is native to the southeastern United States, from Virginia to eastern Louisiana and inland as far as Tennessee.
Helenium brevifolium is a perennial herb up to 100 cm (40 inches) tall. One plant can produce as many as 10 flower heads, in branching arrays. The head is spherical or hemispherical, with sometimes as many as 800 disc florets, each floret yellow near the base but purple or brown or yellow towards the tip. There are also 9-24 yellow ray florets. The species grows in bogs, swamps, and other wet places.
Begin with the source’s own compact description: “Helenium brevifolium” is species of plant. The dossier treats that line as a proposition to test through Helenium, brevifolium and species, not as a finished interpretation.
Why this record matters
The phrase “species of plant” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 19, 2025. The linked authority identifier is Q15558611.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Helenium brevifolium”, its source revision and the description used here.
- Expand the search: follow Helenium brevifolium primary sources, Helenium brevifolium archive and Helenium research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Helenium brevifolium”?
- Has classification or technical consensus changed since the cited source?
- Is the terminology current, historical or disputed?
Search terms from this dossier
This entry incorporates text from “Helenium brevifolium” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.