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Helianthus occidentalis

species of plant

Specimen drawers, botanical folios and brass scientific instruments under study light
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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 23, 2025
Entity authorityQ5704883
Source-derived summary

Helianthus occidentalis (common names the fewleaf sunflower, nakedstem sunflower, or western sunflower) is a species of sunflower native to the Eastern and Central United States. It grows mostly in the Great Lakes Region and in the Ozarks, with additional populations scattered as far as Massachusetts, Texas, and the Florida Panhandle.

Helianthus occidentalis differs from other, similar species by its sparse leaves, most of which are crowded around the lower part of the stem. This perennial plant reaches heights from 2 to 5 ft (60–150 cm). It produces one to several yellow flower heads, each with 8-14 ray florets surrounding more than 50 disc florets.

The word occidentalis means "western" in Latin. The plant was first described in 1836, when the Great Lakes Region was considered the western part of the United States.

Subspecies

Helianthus occidentalis subsp. occidentalis - most of species range

Helianthus occidentalis subsp. plantagineus (Torr.

Editorial summary

This brief starts where responsible research should: with the source description of “Helianthus occidentalis” as species of plant. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current lead gives the account dated anchors—1836—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Helianthus, occidentalis and species can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as species of plant. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Jul 23, 2025. The linked authority identifier is Q5704883. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1836.

Critical limits

Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. 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.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Helianthus occidentalis”, its source revision and the description used here.
  2. Expand the search: follow Helianthus occidentalis primary sources, Helianthus occidentalis archive and Helianthus research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Helianthus occidentalis”?
  2. Which observation, specimen, dataset or publication supports the account?
  3. Is the terminology current, historical or disputed?
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Source & attribution

This entry incorporates text from Helianthus occidentalis” 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.