Zamia elegantissima: the most elegant cycad of Panama

Zamia elegantissima is a tree-forming cycad of central Panama, known from the Caribbean slope in the province of Colón and the Guna territory of Kuna Yala, where it grows in lowland rainforest. This species of the genus Zamia forms a trunk up to 3 m tall and carries many upright, glossy, bright green leaves, more than 30 on large cultivated plants, hence its name, “the most elegant”. Long confused with Zamia fairchildiana of Costa Rica and western Panama, it was described by Bart Schutzman, Andrew Vovides and Russell Adams in 1998, but its name has only been valid since 2003. It is rated Endangered by the IUCN.

Key facts about Zamia elegantissima

Accepted name: Zamia elegantissima Schutzman, Vovides & R.S.Adams (2003), accepted by The World List of Cycads (version 2026.08.15) and by GBIF; POWO could not be consulted directly
Former names and synonyms: no synonym; before 1998 these plants were referred to Zamia fairchildiana; Robert Dressler informally called them “Zamia pseudo-pseudoparasitica”
Family: Zamiaceae, order Cycadales
Common names: no name attested, in English or in any other language
Natural range: Panama, Caribbean slope: provinces of Colón and Kuna Yala; lowland forest
IUCN status: Endangered (EN), criteria B1ab(iii,v), assessment published in 2022
CITES and other protection: CITES Appendix II (listing of the family Zamiaceae; seeds exempt under annotation #4); Annex B in the European Union; zero export quota set by Panama for wild-collected specimens
Documented hardiness: no measured data; sources range from “fully tropical” to a commercial zone 9b (see Cold hardiness)
Light and soil: in the wild, primary lowland rainforest and secondary or disturbed habitats; plants cone more often along brighter stream banks than in deep shade
Habit and adult size: trunk up to 3 m, base more than 8 cm and up to 21 cm across; many upright leaves up to 170 cm long
In the UK, US and Australia: listed by Fairchild Tropical Botanic Garden and Montgomery Botanical Center (Florida), and declared to BGCI by the Huntington, Marie Selby Botanical Gardens and the University of Hawaii at Hilo; no British or Australian record
Toxicity: no data specific to the species; treat it as poisonous, like all cycads (see Toxicity and precautions)

How to recognise Zamia elegantissima

A thick trunk, many upright, glossy leaves and flat leaflets toothed in their upper half are its hallmarks. The data below come from the original description (Schutzman, Vovides and Adams, 1998) and from the comparison published by Taylor Blake and Holzman (2012) when they described Zamia stevensonii.

Trunk

The plant is large and tree-like, with a trunk reaching 3 m. Its base measures more than 8 cm, and up to 21 cm, across in adult or coning plants (Taylor Blake and Holzman, 2012). Even when it rises above ground, the trunk always keeps at least 15 cm below the surface where the soil is deep enough (A. Taylor, cited in the original description). Its size varies greatly between populations, and coning females sometimes have a stem only 5 to 10 cm in circumference. Jay Vannini, a naturalist who grows Central American cycads in the United States and Guatemala, notes that mature plants usually have a noticeably thick trunk, exceptionally more than 3 m (9 ft) tall, and that some plants without a visible trunk growing on rocky soils on the north coast of Panama had developed massive caudices and very large leaves (Vannini, 2019).

Leaves and leaflets

The leaves are numerous, often more than 30 in cultivation, upright, up to 170 cm long. The petiole, 43 to 44 cm long in the description, is almost unarmed: prickly in seedlings, it gradually loses its small cylindrical prickles with age, and it emerges hairless and bright green. The leaflets, lanceolate and slightly sickle-shaped, are 20 to 22 cm long and 2.5 to 4 cm wide; their tip is short, their base tapered, and their margin carries small teeth 0.5 to 1.5 mm long from the tip to about the middle, sometimes hardly any. Bright green, hairless and glossy, they lack the lengthwise fold of the leaflets of Zamia fairchildiana. The San Diego nursery Jungle Music describes leaves typically 1.2 to 1.5 m (4 to 5 ft) long and shiny, bright green leaflets 2.5 to 4 cm (1 to 1.5 in) wide and 10 to 20 cm (4 to 8 in) long, serrated at the ends.

The sources disagree on the colour of new leaves: “apple green” according to the original description, light green to yellowish green according to the key of Taylor Blake and Holzman (2012), but “cream-coloured” in the chapter by Taylor and colleagues published the same year. They also differ on seedlings: first leaves with three or four leaflets according to the 1998 description, most often six (fairly often four) according to Taylor Blake and Holzman (2012).

Cones and seeds

The species has separate male and female plants. Male cones are upright and cylindrical, yellowish beige to light brown with green tints, on a finely downy stalk; their fertile scales end in a small, raised hexagonal face and carry pollen sacs only on the lower side. Female cones are cylindrical, with a large pointed or rounded tip, beige to light brown with green tints; they have 14 to 20 vertical rows of scales, whose face is marked by a narrow slit and whose edge folds back towards the cone axis. The bright red seeds, 2.8 to 3 cm by 1.6 to 1.8 cm, stay hidden between the scales until the cone breaks up. The chromosome number, 2n = 20, was the first count of that value reported in the genus (Schutzman and colleagues, 1998).

Hybrids

No natural or garden hybrid involving Zamia elegantissima has been documented. According to Taylor Blake and Holzman (2012), the four trunk-forming Panamanian Zamia of its group have separate ranges, with no known overlap.

Possible confusion

The documented confusions concern other trunk-forming Zamia of the isthmus:

Zamia fairchildiana (south-eastern Costa Rica and the far west of Panama, Pacific slope): 20 leaves or fewer, arching; sigmoid leaflets with a lengthwise fold, toothed only at the tip; petiole covered with dark brown down when it emerges; female cones with 5 to 12 rows of flat scales, showing the ripe seeds; pollen sacs on both faces of the male scales; seedlings with two or three leaflets (Schutzman and colleagues, 1998).
Zamia stevensonii (Panama Canal area): the closest species, but with white young leaves, a stem base less than 8 cm across, fewer leaves and leaflets, and much smaller cones and seeds (Taylor Blake and Holzman, 2012). Vannini (2019) adds that Zamia elegantissima generally has a “beefier” look in nature, with thicker, taller trunks and longer leaves.
Zamia pseudomonticola (north-western Chiriquí province, above 1,000 m): leaflets with a lengthwise fold and an acuminate tip, pollen sacs on both faces of the male scales.
Zamia tuerckheimii (Guatemala, Honduras): numerous but widely arching leaves, pointed male scales as in Zamia elegantissima, but seeds visible in the ripe cone and a stem that often lies on the ground (Schutzman and colleagues, 1998).
Zamia pseudoparasitica: according to the original description, Robert Dressler called the species “pseudo-pseudoparasitica” because it had been confused with that epiphytic cycad; yet it grows on the ground.

Nursery plants deserve caution: the “blanco” Zamia of the trade, with white new leaves, which Jungle Music presents as a variant of this species, is the name used in the rare-plant trade for Zamia stevensonii, described in 2012, according to Vannini (2019).

Taxonomy

Zamia elegantissima Schutzman, Vovides & R.S.Adams is an accepted name according to The World List of Cycads and GBIF; POWO could not be consulted directly. The species was described in Phytologia 85(3): 137-145, an issue dated September 1998 but published, according to The World List of Cycads, in 2000. The authors had cited two herbarium sheets as the type without stating which was the holotype, as the botanical code requires, so the name was invalid. They validated it in a short note in issue 85(6) of the same journal, dated December 1998 but published on 21 August 2003, which became the date of valid publication. The type is Robert Dressler’s collection no. 4897, made in Colón province at about 300 m on 19 December 1974; the holotype is at the Missouri Botanical Garden (MO), the isotype at the herbarium of the University of Panama (PMA).

Separated from Zamia fairchildiana

Stevenson (1993) still placed these plants in Zamia fairchildiana, giving it a discontinuous range from south-eastern Costa Rica to Guna territory in eastern Panama. Schutzman and colleagues (1998) showed that the populations of central Panama, on the Atlantic slope, differ from those of Costa Rica and western Panama, on the Pacific slope of the Talamanca range, in their leaves, cones, seeds and seedlings, and that no population is known between the two. For the reader, the consequence is that large trunk-forming Zamia from central Panama labelled “Zamia fairchildiana” before 1998 belong to this species.

The description of Zamia stevensonii in 2012 then separated the white-flushing plants of the Canal area, which Taylor (2002) had referred to Zamia elegantissima. The specimens cited in 1998 included collections from the former Canal Zone and Panamá province; The World List of Cycads now cites only Colón and Kuna Yala. No published source reassigns these specimens by name.

Place in the genus

In 1998, Schutzman and colleagues placed the species in a supposed “Zamia fairchildiana group”, with Zamia acuminata, Zamia fairchildiana, Zamia inermis, Zamia obliqua, Zamia soconuscensis and Zamia tuerckheimii. Recent molecular analyses give a different picture: the transcriptome study of Lindstrom and colleagues (2024), which sequenced a plant from Colón, groups Zamia elegantissima, Zamia obliqua and Zamia stevensonii in one subclade of clade V, the Isthmus clade, sister to the subclade of Zamia dressleri and Zamia pseudoparasitica; the authors note that these three species are morphologically closer to Zamia pseudoparasitica.

Etymology and history

The epithet is the superlative of the Latin elegans: “the most elegant”. The authors chose it for the look of the plant, whose large cultivated specimens carry 40 or more large, glossy and fairly upright leaves, and noted that this beauty had made it sought after in cycad collections (Schutzman and colleagues, 1998; Haynes, 2022, cited by The World List of Cycads).

Its story begins with the orchid specialist Robert Dressler, who had rediscovered Zamia pseudoparasitica in Veraguas province at the end of the 1970s. He informally called another plant of central Panama, fairly common, terrestrial and tree-like, with a trunk often reaching 3 m, “pseudo-pseudoparasitica”, because it had been confused with the epiphyte. Knowing it was undescribed, he wanted to name it after the entomologist A.G.B. “Sandy” Fairchild, son of the plant explorer David Fairchild, in whose garden he had seen several Panamanian cycads, but he avoided writing the name before publishing. The name spread anyway: Robert Wilson, of the Las Cruces botanical garden in Costa Rica, distributed seed of Costa Rican plants labelled “Zamia fairchildii”, and L.D. Gómez published Zamia fairchildiana in 1982 from a population on the Osa Peninsula, in Costa Rica. The name Dressler had intended thus ended up attached to another species, and the plants of central Panama remained unnamed until 1998.

Seeds collected in 1983 and 1984 along the río Iguanita, in Colón province, gave plants that produced their first male cones in 1996 and female cones in 1997; the differences from Zamia fairchildiana were visible from the first seedling leaves (Schutzman and colleagues, 1998). In 2013, The Cycad Newsletter of The Cycad Society published two articles on the species, on its taxonomic history and on growing it in Florida; they could not be consulted.

Common names

There is no English name, and no vernacular name is attested in any other language; Species+ gives none. “Pseudo-pseudoparasitica” was a working nickname of Robert Dressler; according to Gómez (1982), it was printed without a description (a nomen nudum) in a bulletin of the Marie Selby Botanical Gardens, and Gómez listed it among the synonyms of his Zamia fairchildiana.

In the wild

Zamia elegantissima is endemic to the Caribbean slope of central Panama. The World List of Cycads records it from the provinces of Colón and Kuna Yala; Taylor Blake and Holzman (2012) place it north of the Canal area, in northern and western Colón province, and further east into part of Guna territory. Taylor and colleagues (2012) describe it as a small shrub to a very large tree of eastern and northern Colón, growing alongside Zamia cunaria, where its trunk reaches almost 3 m, and list it among the species of lowland evergreen forest below 700 m. For Vannini (2019), its range is fragmented, at low elevations in tropical rainforest.

According to the original description, the species grows in primary lowland rainforest as well as in secondary or disturbed habitats. Cones seem more frequent on the better-lit plants along streams and almost absent in the understorey, except in gaps left by fallen trees. All the coning plants then observed were females, and Alberto Taylor reported very high seedling mortality in the wild; the authors contrasted this poor reproduction with that of Zamia fairchildiana, whose populations produce many cones of both sexes, even in shade.

Reproduction

Alberto Taylor presented in 2002 “irrefutable proof” of insect pollination in Zamia elegantissima, in a paper cited by Taylor and colleagues (2012) but not consulted; it may partly concern the plants later described as Zamia stevensonii, which Taylor then referred to Zamia elegantissima (Taylor Blake and Holzman, 2012). On the isthmus, these authors cite Pharaxonotha beetles and weevils close to Rhopalotria as pollinators. The caterpillars of the butterfly Eumaeus godarti, the main cycad herbivore in Panama, destroy the male cones of Zamia elegantissima (Taylor and colleagues, 2012). The seeds have a peculiarity: they seem to lack the substances that, in many cycads, prevent germination until the fleshy coat has gone. The root pierces the coat a few days after the seed is soaked, sometimes even before the seed falls from the cone (Schutzman and colleagues, 1998).

Conservation status and regulation

Zamia elegantissima is rated Endangered (EN) on the IUCN Red List, under criteria B1ab(iii,v), in the assessment by J.D. Bösenberg dated 5 June 2020 and published in 2022 (GBIF gives the same category; the Red List itself could not be consulted). These criteria reflect a small range, with a decline in habitat quality and in the number of mature individuals. An earlier assessment by A. Taylor was published in 2010; its category could not be checked.

Taylor and colleagues (2012) reported very small populations, of fewer than 50 plants, and found, for the cycads of Panama as a whole, destruction and illegal collecting in almost every population visited, as well as the threat that deforestation poses to these understorey plants. The scarcity of cones in shade and the high seedling mortality noted in 1998 make natural regeneration fragile.

Zamia elegantissima falls under CITES Appendix II through the listing of the family Zamiaceae (except the species in Appendix I), in force since 4 February 1977 according to Species+. Annotation #4 (version in force since 5 March 2026) exempts in particular seeds, pollen, seedlings and tissue cultures obtained in vitro and transported in sterile containers, and cut flowers of artificially propagated plants; international trade in the plants themselves requires a permit. In the European Union the species falls under Annex B of Regulation (EC) No 338/97, whose current annexes are set by Regulation (EU) 2026/1383, applicable since 29 June 2026; Species+ shows Annex A until February 2017. Since 19 June 2025, Panama has also applied a zero export quota for wild-collected specimens (CITES Notification No. 2025/079), except for scientific, personal, medical, educational or judicial purposes.

This general information, checked on 18 October 2026, does not replace the official texts: check the regulations in force before buying or exchanging plants, ask the seller for proof of origin and prefer plants raised from seed in cultivation.

Growing Zamia elegantissima

Zamia elegantissima is a collector’s plant for a heated glasshouse in temperate climates. Vannini (2019) says it is in limited cultivation and requires fully tropical conditions to thrive. No botanical garden has published growing guidelines; a 2013 article on growing it in Florida (Broome, 2013) exists but could not be consulted. Jungle Music, which grows mature, coning plants in containers in San Diego, recommends filtered light and a free-draining soil, as for all Zamia.

Simon Lavaud, of the French specialist nursery Cycadales.eu in Montpellier, places it in his group of the Zamia of Central America and the lowland forests of South America, rated “difficult” outside the tropics (Lavaud, 2023). For this group he recommends:

a free-draining compost and water that are neutral to acid;
night temperatures around 22 °C (71.6 °F), with only brief spells at about 15 °C (59 °F) tolerated;
day temperatures of 28 to 30 °C (82.4 to 86 °F), up to 34 to 35 °C (93.2 to 95 °F) for most species, with possible damage to young leaves during heat peaks;
high air humidity, between 70 and 90 per cent, for optimal growth.

These are recommendations from experience for a group of species, not measurements made on Zamia elegantissima. The original description adds two concrete pointers: large cultivated plants often carry more than 30 leaves, up to 40 or more, and plants raised from seed collected in 1983-1984 produced their first cones in 1996-1997, after twelve to fourteen years. In the wild, cones are more frequent on the better-lit stream-bank plants; one may infer that bright but filtered light favours coning in cultivation, though no source confirms it. With a trunk that can exceed 2 m and leaves 1.7 m long, the species eventually needs a lot of room.

Outdoor and in-ground cultivation

No in-ground growing result outside the tropics has been published. Jungle Music writes that it probably will not tolerate a freeze without leaf damage, which limits outdoor planting to frost-free gardens; the sources read do not say whether the plants in Florida collections are grown outdoors.

Container cultivation

It does well enough in containers to cone there: Jungle Music shows mature, coning nursery plants grown in pots. Given its eventual size, a large, deep, free-draining container is needed, with warmth, humidity and filtered light all year; in cool climates this means a heated glasshouse.

In cultivation in the UK, US and Australia

In short: held in Florida and California collections; no British or Australian record.

United States: Fairchild Tropical Botanic Garden (Coral Gables, Florida) lists it in its online catalogue (Garden Explorer, updated on 16 October 2026). Montgomery Botanical Center’s online catalogue lists one accession under Zamia elegantissima (2000775), annotated “Zamia cf. elegantissima”, and the same annotation appears on the entry for Zamia fairchildiana, which groups seven accession numbers (two older ones, three from 2007, one from 2008 and one from 2018): the identity of these plants is therefore uncertain. Fairchild, Montgomery, the Huntington (San Marino, California), Marie Selby Botanical Gardens (Sarasota, Florida) and the Botanical Garden of the University of Hawaii at Hilo declare it to BGCI (queried on 25 October 2026). The nursery Jungle Music, in San Diego, grows mature and coning plants.
United Kingdom: no record in BGCI or in the online catalogues of British gardens (Edinburgh, Cambridge, Chelsea Physic Garden).
Australia: no record in BGCI or in the online catalogues of Australian gardens.

Outside these countries, BGCI also lists the Francisco Javier Clavijero botanic garden in Xalapa (Mexico). A BGCI declaration shows that a garden held the plant at some point, not that it is alive today.

Propagation

The species is propagated from seed, after a female plant has been pollinated by a male coning at the same time; in cultivation, pollination is usually done by hand. The seeds germinate quickly: according to the original description, the root emerges a few days after soaking, without waiting for the fleshy coat to disappear. Fresh seed is therefore best, with the coat removed while wearing gloves. Seedlings’ first leaves carry three to six leaflets depending on the source (see How to recognise). Jungle Music illustrates the progression from a pollinated cone to ripe red-orange seed and to seedlings. Seeds are exempt from CITES under annotation #4, but they must come from cultivated plants of legal origin.

Pests and diseases

No disease specific to the species has been documented. In the wild, the caterpillars of Eumaeus godarti destroy its male cones (Taylor and colleagues, 2012). In cultivation, Zamia are most at risk from root and stem rot in cold, waterlogged compost, and from scale insects. Among the latter, Aulacaspis yasumatsui, the Asian cycad scale, counts the genus Zamia among its host plants according to the EPPO Global Database, after Marler, Lindström and Watson (2021); no attack has been reported on Zamia elegantissima in particular.

Cold hardiness

Zamia elegantissima is not frost-hardy as far as anyone knows: it is a species of humid tropical lowland forest, and no measured data on its cold tolerance exist, in the wild or in cultivation. In the lowland evergreen forests of Panama, Taylor and colleagues (2012) give temperatures of 24 to 30 °C (75.2 to 86 °F). The sources then diverge: Vannini (2019) says it needs fully tropical conditions, Jungle Music that it probably will not tolerate a freeze without leaf damage, while the British nursery Trebrown gives it a commercial rating of zone 9b, without stating its basis. None of these is a measured limit, and the cautious reading of Vannini and Jungle Music is the safer guide.

Mediterranean and European experience

No cultivation in the ground or in a pot has been reported in France or elsewhere in Europe, and no dated frost episode concerns the species. Lavaud (2023), who lives in Montpellier, explains that even in July and August nights there, around 19 °C (66.2 °F), are cooler than lowland tropical Zamia need, and the air much drier. Under a Mediterranean climate, as in the UK, the only reasonable option is a heated, humid glasshouse.

United Kingdom, United States and Australia

No dated cold record has been published. A 2013 article on growing the species in Florida (Broome, 2013) could not be read, so no cold data are drawn from it; the plants grown in southern California by Jungle Music are not accompanied by any temperature record.

Toxicity and precautions

No toxicity study specific to Zamia elegantissima has been published. The risk is, however, documented in the genus and in other cycads: Zamia contain toxic glycosides (cycasin, macrozamin), from which methylazoxymethanol is derived, and for Zamia furfuracea the ASPCA cites cycasin and BMAA, a neurotoxic amino acid, with vomiting, bloody diarrhoea and liver damage in dogs, cats and horses; the seeds are the most dangerous part. In the absence of evidence to the contrary, treat the plant as poisonous: keep seeds and leaves out of reach of children and animals, and wear gloves to clean seeds. If any part is swallowed, contact a poison centre, a doctor or a vet straight away.

Traditional uses

No traditional use of Zamia elegantissima has been documented. Its only known use is ornamental, in cycad collections.

Frequently asked questions

Why is it called “elegantissima”?

For its looks: “the most elegant” in Latin. Its authors chose the name for the large cultivated plants, which carry 40 or more large, glossy and fairly upright leaves.

How does it differ from Zamia fairchildiana?

By its range and several details. Zamia elegantissima lives on the Caribbean slope of central Panama, Zamia fairchildiana on the Pacific slope of Costa Rica and western Panama. The first has more, upright leaves, flat leaflets toothed to the middle and seeds hidden in the cone; the second has arching leaves, leaflets with a lengthwise fold and seeds visible between the scales.

And from Zamia stevensonii?

Mainly by the colour of the young leaves and by size. Zamia stevensonii, from the Canal area, has white young leaves, a stem less than 8 cm across at the base and much smaller cones; Zamia elegantissima has green young leaves and a thicker stem, up to 21 cm.

Why does its name date from 2003 and not 1998?

Because the first publication was invalid. The authors had cited two herbarium sheets as the type without stating which was the holotype; they corrected this in a note published in 2003, the date retained for the name.

Is it endangered?

Yes. The IUCN rates it Endangered (2022); its small, scattered populations reproduce poorly in shade and lose many seedlings.

Can it be grown in the UK?

Yes, but only in a heated, humid glasshouse. It is a large tropical species with no known frost tolerance, and plants should come from seed raised in cultivation.

Sources

Reference sites

The World List of Cycads (version 2026.08.15), Zamia elegantissima: https://cycadlist.org/scientific_name/462 — authors, invalid publication (Phytologia 85(3), published in 2000) and validation (85(6), published on 21 August 2003), type (Dressler 4897, Colón, 300 m, 19 December 1974, holotype MO), range, IUCN status and criteria, etymology (Haynes 2022), 2013 articles. Checklist of the IUCN Cycad Specialist Group, reliable; consulted on 18 October 2026.
The Cycad Society, Schutzman, Vovides and Adams 1998 (PDF): https://www.cycad.org/documents/descriptions/Zamia/Zamia-elegantissima.pdf — original description: history (Dressler, Fairchild), diagnosis, description, etymology, ecology, germination, comparison with Zamia fairchildiana and Zamia tuerckheimii, chromosomes, seedlings. Botanical journal article; full text read (scan) on 18 October 2026.
The World List of Cycads, validation note (Phytologia 85(6): 389, PDF): https://cycadlist.org/storage/proto/Zamia_elegantissima.pdf — designation of the holotype (MO) and isotype (PMA), date of valid publication. Primary source; read on 18 October 2026.
The Cycad Society, Gómez 1982, “Plantae mesoamericanae novae II” (PDF): https://www.cycad.org/documents/descriptions/Zamia/Zamia-pseudomonticola.pdf — “Zamia pseudo-pseudoparasitica Dressler”, nomen nudum placed in the synonymy of Zamia fairchildiana. Primary source (Phytologia 50: 401–404); read on 18 October 2026.
The Cycad Society, Taylor Blake and Holzman 2012 (PDF): https://www.cycad.org/documents/descriptions/Zamia/Zamia-stevensonii.pdf — ranges of the four trunk-forming Panamanian Zamia, key (young leaves, stem diameter), seedlings, past confusion with Zamia stevensonii. Peer-reviewed article (Botanical Review); full text read on 18 October 2026.
IntechOpen, Taylor et al. 2012, Biogeographic Insights in Central American Cycad Biology: https://doi.org/10.5772/32253 — range in Colón province, sympatry with Zamia cunaria, populations of fewer than 50 plants, cream-coloured young leaves, seeds, Eumaeus godarti, forest type and temperatures. Open-access scientific book chapter; full text read on 18 October 2026.
Lindstrom et al. 2024 (Annals of Botany, open access): https://doi.org/10.1093/aob/mcae065 — sample from Colón, subclade grouping Zamia obliqua, Zamia elegantissima and Zamia stevensonii. Peer-reviewed article; full text consulted.
Exotica Esoterica, Central American and Panamanian Cycads in Field and Greenhouse (Jay Vannini, 17 February 2019): https://www.exoticaesoterica.com/magazine/central-american-and-panamanian-cycads-in-field-and-greenhouse — fragmented range, thick trunk, massive caudices on the north coast, comparison with Zamia stevensonii, limited and demanding cultivation. Article by a naturalist and collector; indicative value; read.
Jungle Music Palms and Cycads, Zamia: https://www.junglemusic.net/Zamia/Zamia_An_Exotic_Type_Of_Cycad.html — description, filtered light, drainage, probable leaf damage below freezing, coning container plants, seeds and seedlings. Specialist nursery in San Diego; commercial source, indicative value; read on 24 October 2026.
Cycadales.eu (Simon Lavaud), Comment cultiver les Zamia en climat tempéré (6 January 2023, updated 27 May 2023, in French): https://cycadales.eu/comment-cultiver-les-zamia-en-climat-tempere/ — Zamia elegantissima in the group of lowland forest species, recommended conditions for the group, comparison with the climate of Montpellier. Specialist nursery: advice from experience for a group of species; reread on 24 October 2026.
Trebrown Nurseries, Zamia elegantissima: https://www.trebrown.com/plant_info.php?species=Zamia+elegantissima — commercial hardiness rating (zone 9b). British specialist nursery; commercial source, indicative value only; read on 25 October 2026.
Species+ (UNEP-WCMC), Zamia elegantissima: https://speciesplus.net/species#/taxon_concepts/27084/legal — CITES Appendix II (listing of the Zamiaceae) since 4 February 1977, annotation #4; Annex B in the European Union; Panama’s zero export quota (2025); distribution (Panama). Official CITES and EU database; queried through its public API on 18 October 2026.
Commission Regulation (EU) 2026/1383: https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=OJ:L_202601383 — annexes to Regulation (EC) No 338/97 in force since 29 June 2026. Official text.
GBIF, Zamia elegantissima: https://www.gbif.org/species/5284162 — accepted name and Red List category (EN). Aggregating database; queried through its API on 25 October 2026.
BGCI PlantSearch, Zamia elegantissima: https://plantsearch.bgci.org/ — six gardens, including Fairchild, Montgomery, the Huntington, Marie Selby and Hilo. Global database of garden lists; a declaration is not proof of a living plant today; queried through its API on 25 October 2026.
Montgomery Botanical Center, online plant catalogue (BG-BASE, CYCADS dataset): https://websites.rbge.org.uk/cgi-bin/nph-readbtree.pl/dataset=CYCADS/filename=n132_cyc/firstval=1?ETI=zamia+elegantissima* — one accession under this name and accessions under Zamia fairchildiana annotated “Zamia cf. elegantissima”. Catalogue kept by the garden; consulted on 25 October 2026.
Fairchild Tropical Botanic Garden, Garden Explorer: https://fairchild.gardenexplorer.org/ — online catalogue of the living collection (updated on 16 October 2026). Catalogue kept by the garden; consulted on 19 October 2026.
EPPO Global Database, Aulacaspis yasumatsui, host plants: https://gd.eppo.int/taxon/AULSYA/hosts — the genus Zamia among the host plants, after Marler, Lindström and Watson (2021). Intergovernmental organisation, reliable.
ASPCA Animal Poison Control, Cardboard Cycad: https://www.aspca.org/pet-care/aspca-poison-control/toxic-and-non-toxic-plants/cardboard-cycad — toxicity of Zamia furfuracea to dogs, cats and horses (cycasin, BMAA), cited here at genus level. Veterinary poison centre, reliable.

Bibliography

Schutzman, B., Vovides, A.P. & Adams, R.S. (1998). A new Zamia (Zamiaceae, Cycadales) from central Panama. Phytologia 85(3): 137–145 (published in 2000). [Original description, name invalid for want of a designated holotype; full text read.]
Schutzman, B., Vovides, A.P. & Adams, R.S. (2003). Validation of the name Zamia elegantissima Schutzman, Vovides & Adams. Phytologia 85(6): 389 (issue dated December 1998, published on 21 August 2003). [Valid publication of the name; read.]
Taylor Blake, A.S. & Holzman, G. (2012). A new Zamia species from the Panama Canal area. The Botanical Review 78(4): 335–344. https://doi.org/10.1007/s12229-012-9105-4 [Comparison with Zamia stevensonii; full text read.]
Taylor B., A.S., Haynes, J.L., Stevenson, D.W., Holzman, G. & Mendieta, J. (2012). Biogeographic insights in Central American cycad biology. In: Stevens, L. (ed.), Global Advances in Biogeography, pp. 73–98. InTech. https://doi.org/10.5772/32253 [Distribution and biology of the Panamanian Zamia; full text read.]
Lindstrom, A., Habib, S., Dong, S., Gong, Y., Liu, J., Calonje, M., Stevenson, D. & Zhang, S. (2024). Transcriptome sequencing data provide a solid base to understand the phylogenetic relationships, biogeography and reticulated evolution of the genus Zamia L. (Cycadales: Zamiaceae). Annals of Botany 134(5): 747–768. https://doi.org/10.1093/aob/mcae065 [Sample from Colón; subclade with Zamia obliqua and Zamia stevensonii; full text consulted.]
Bösenberg, J.D. (2022). Zamia elegantissima. The IUCN Red List of Threatened Species 2022: e.T178876A69834761. https://doi.org/10.2305/IUCN.UK.2022-1.RLTS.T178876A69834761.en [Current assessment (EN, B1ab(iii,v)), dated 5 June 2020; reference checked on Crossref, category on GBIF, criteria on The World List of Cycads; Red List page not consulted.]
Taylor, A. (2010). Zamia elegantissima. The IUCN Red List of Threatened Species 2010: e.T178876A7633173. https://doi.org/10.2305/IUCN.UK.2010-3.RLTS.T178876A7633173.en [Earlier assessment; reference checked on Crossref, category not verified.]
Stevenson, D.W. (1993). The Zamiaceae in Panama with comments on phytogeography and species relationships. Brittonia 45(1): 1–16. https://doi.org/10.2307/2806850 [Inclusion of these plants in Zamia fairchildiana, after Schutzman et al. 1998.]
Gómez P., L.D. (1982). Plantae mesoamericanae novae. II. Phytologia 50(6): 401–404. [Description of Zamia fairchildiana, with “Zamia pseudo-pseudoparasitica Dressler” in synonymy; full text read.]
Schutzman, B. (2013). Zamia elegantissima, the most elegant Zamia: taxonomic history. The Cycad Newsletter 35(4): 18–21. [Reference given by The World List of Cycads; not consulted.]
Broome, T. (2013). Growing Zamia elegantissima in Florida. The Cycad Newsletter 35(4): 21. [Reference given by The World List of Cycads; not consulted.]
Haynes, J.L. (2022). Etymological compendium of cycad names. Phytotaxa 550(1): 1–31. https://doi.org/10.11646/phytotaxa.550.1.1 [Source of the etymologies given by The World List of Cycads; not consulted directly.]
Vannini, J. (2019). Central American and Panamanian cycads in field and greenhouse. Exotica Esoterica, 17 February 2019. [Online article by a naturalist and collector; read.]
Lavaud, S. (2023). Comment cultiver les Zamia en climat tempéré. Cycadales.eu. [Growing advice for groups of species; read directly.]
Marler, T.E., Lindström, A.J. & Watson, G.W. (2021). Aulacaspis yasumatsui delivers a blow to international cycad horticulture. Horticulturae 7(6): 147. https://doi.org/10.3390/horticulturae7060147 [Host plants cited after EPPO; full text not consulted.]
Calonje, M., Stevenson, D.W. & Osborne, R. (2026). The World List of Cycads, version 2026.08.15. Montgomery Botanical Center, Coral Gables. https://doi.org/10.5281/zenodo.21958524 [Reference checklist; consulted directly.]