Dioon edule
species of plant
Dioon edule, the chestnut dioon, is a cycad native to Mexico, also known as palma de la virgen. Cycads are among the oldest seed plants and even pre-date the dinosaurs. It belongs to the Zamiaceae plant family within the order Cycadales. The genus name "Dioon" means "two-egged", referring to the two ovules (see photo below).
Two subspecies are known, the nominate subspecies growing in a moister environment than the other:
Dioon edule subsp. angustifolium
Dioon edule subsp. edule
Anatomy
Dioon edule is easily distinguished from other Dioon species because it lacks spines on the borders of leaflets. Spines are present on juvenile leaves but are lost when the plant matures. D. edule has a crown of pinnate (i.e. feathered) leaves which measure around 135 cm long.
“Dioon edule” enters the record as species of plant. Crown Archives preserves that source wording while asking what Dioon, edule and species can confirm, complicate or overturn.
Why this record matters
“Dioon edule” is worth following because a concise public description often conceals a longer documentary argument. Here, Dioon, edule and species provides the most credible route into that argument.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated May 18, 2026. The linked authority identifier is Q134518. None of the 0 selected statements returned an explicit reference.
A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. 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.
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Three-step research path
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Questions for further research
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This entry incorporates text from “Dioon edule” 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.