Brugmansia suaveolens
Botany
| Accepted name | Brugmansia suaveolens (Humb. & Bonpl. ex Willd.) Sweet. Willdenow published the basionym Datura suaveolens in 1809; Robert Sweet made the accepted combination in Hortus Suburbanus Londinensis in 1818 (POWO, 2026). |
| Family | Solanaceae · subfamily Solanoideae · tribe Datureae. |
| Order | Solanales. |
| Native range | Kew delimits the native range to eastern Brazil, from southern Bahia to northern Rio Grande do Sul, principally in seasonally dry tropical vegetation. Plants now occur through tropical and subtropical cultivation and naturalisation on several continents; an occurrence outside the reconstructed Brazilian range does not by itself represent a surviving native population (POWO, 2026; Stinca, 2020). |
| Local names | Toé/toe, floripondio, trompeta, borrachero, borrachera, guanto, huanto/wantuk, huanduj, misha, maikua/maikoa/maikiua and angel’s trumpet. These names frequently designate other Brugmansia species, cultivated hybrids or local named clones; they are ethnobotanical categories, not automatic identifications of B. suaveolens (Bristol, 1969; Lockwood, 1979; Hay, Gottschalk and Holguín, 2012). |
| Conservation | Extinct in the Wild (EW). The assessment records no verified self-sustaining population within the native range, although cultivated and naturalised plants are widespread (Hay, 2014). |
| Principal synonym | Datura suaveolens Humb. & Bonpl. ex Willd. Older botanical, chemical and ethnographic literature often placed all tree daturas within Datura; searches confined to Brugmansia will miss foundational records. |
Morphology and life history
A soft-wooded, often multi-stemmed shrub or small tree, commonly 3–5 m but capable of reaching roughly 10 m in favourable conditions. Alternate leaves are large, simple, ovate to elliptic, often softly pubescent, with an asymmetric base and entire to shallowly toothed margins. Vegetative shoots eventually fork in a characteristic Y; flowers are produced above this transition in the mature flowering zone. The pendulous corolla is narrowly trumpet-shaped, commonly 24–32 cm long, white to cream in botanically typical material, strongly fragrant toward evening, and terminates in five short, recurved teeth. Cultivated hybrids extend the palette through yellow, peach and pink and include doubled corollas (Hay, Gottschalk and Holguín, 2012; Petricevich et al., 2020).
The fruit is smooth and unarmed, containing numerous seeds, in contrast to the usually erect flowers and spiny capsules of herbaceous Datura. Fragrance and nocturnal anthesis are consistent with moth visitation, while human propagation by cuttings has been decisive to the survival and global movement of the genus. Long-lived clones, ready hybridisation and horticultural selection make the cultivated plant simultaneously a botanical organism and an archive of human choices.
Taxonomic and evidential limits
Woodiness, pendulous flowers, unarmed indehiscent fruits and molecular phylogenetics support Brugmansia as a genus distinct from its sister Datura (Lockwood, 1973; Dupin et al., 2018).
Many ornamentals and Indigenous named forms are hybrids or clones with complex ancestry. B. × candida, B. × cubensis and Sibundoy cultivars cannot be reassigned to B. suaveolens merely because a common name overlaps.
The genus may be a human-maintained remnant of an older dispersal ecology, sometimes linked hypothetically to extinct megafauna. No extinct disperser has been demonstrated for this species; the secure finding is the absence of verified native wild populations and the persistence of extensive cultivated lineages (Hay, 2014).
Trumpet-flower images in ancient Andean art have been interpreted as Brugmansia or Datura, but secure species-level macroremains or residues are lacking. The 2025 direct study at Chavín identified vilca and Nicotiana, not Brugmansia (Rick et al., 2025).
Chemistry
B. suaveolens produces tropane alkaloids throughout the plant. Scopolamine is frequently prominent; L-hyoscyamine, atropine, norhyoscyamine, norscopolamine, littorine, tropine, pseudotropine, apoatropine and minor ester alkaloids have also been reported. Concentrations differ among organs, individuals, growth stages, seasons and environments. The name of a cultivar or a flower colour is therefore not a quantitative chemical assay (Petricevich et al., 2020; Algradi et al., 2021; Rojas et al., 2023).
Scopolamine
L-Hyoscyamine
Atropine
Minor alkaloids
Biosynthesis and mechanism
Tropane biosynthesis begins from ornithine/putrescine metabolism, proceeds through N-methylputrescine and tropinone, and branches through esterification and hydroxylation steps. Hyoscyamine 6β-hydroxylase participates in the conversion of hyoscyamine toward scopolamine. At the receptor level, scopolamine and hyoscyamine competitively antagonise muscarinic acetylcholine receptors M1–M5. Central M1-rich networks involved in attention and memory are especially relevant to delirium and amnesia; peripheral blockade contributes mydriasis, dry mouth, tachycardia, reduced sweating and impaired gastrointestinal and bladder function (Kohnen-Johannsen and Kayser, 2019; Algradi et al., 2021).
Evidence boundaries
The characteristic state is antimuscarinic delirium, not 5-HT2A-mediated psychedelic perception. Fully embodied scenes and impaired reality-monitoring are pharmacologically coherent with cholinergic disruption.
Named clones may encode accumulated selection and specialist knowledge, but morphology, folk taxonomy and alkaloid concentration do not correspond one-to-one. A Colombian LC–MS preprint found organ and locality effects stronger than a simple taxonomic signature; peer review remains pending (Rojas et al., 2023).
Flower and leaf extracts show antinociceptive, anti-inflammatory and antimicrobial activity in laboratory models. These findings neither identify the active principle in every case nor constitute clinical evidence for traditional whole-plant treatments (Parker et al., 2007; da Costa et al., 2023).
Purified scopolamine is a licensed medicine and a neuroscience probe for cholinergic memory impairment; research on the molecule—including rapid-antidepressant experiments—does not amount to clinical research on B. suaveolens (Drevets and Furey, 2010).
Tradition, ritual & cultural use
History and evidence
| Pre-Hispanic Andes | Iconographic proposal Trumpet-shaped flowers and transformational figures in Chavín, Moche and other Andean art have been associated with tree daturas. Identification is debated, and no image establishes B. suaveolens. Direct Chavín residue research currently supports vilca and tobacco instead (Rick et al., 2025). |
| Colonial period | Textual record Spanish chronicles and early natural histories record guanto/huantuc, intoxicating tree daturas and floripondio-like medicines. These sources document an Andean category of use but cannot always be reconciled with present species limits (Lockwood, 1979; Hay, Gottschalk and Holguín, 2012). |
| 1809–1818 | Species history Datura suaveolens was formally published from Brazilian material in 1809 and transferred to Brugmansia in 1818. This is the beginning of the securely named species record, not the beginning of human relations with tree trumpets (POWO, 2026). |
| 20th century | Voucher ethnobotany Field research by Bristol, Schultes, Lockwood and Indigenous collaborators documented the extraordinary cultivar system of the Sibundoy Valley; later work described Shuar, Matsigenka and northern Peruvian practices. Much of this evidence concerns Brugmansia spp. or hybrids rather than B. suaveolens alone (Bristol, 1969; Lockwood, 1979; Bennett, 1992; De Feo, 2004). |
Peoples, territories and preparations
Specialists, healing and ambivalence
“Shamanism” is an analytic umbrella over distinct offices: Kamëntsá and Inga healers and knowledge holders, Shuar uwishin, Amazonian vegetalistas, and northern Peruvian curanderos working a mesa. Brugmansia can disclose causes of illness, test an apprentice, provide a guardian relation, facilitate extraction or locate lost persons; the same potency can be classified as aggressive, deceptive or socially dangerous. This ambivalence is not a contradiction added by outside toxicology. It is already present in local distinctions between medicine and poison, curing and attack, knowledgeable and unmastered vision (Bristol, 1969; Shepard, 1998; De Feo, 2004).
> Certain of the medicine-man’s secrets apparently are imparted only when the novitiate is under the protection of this narcotic. — Schultes, quoted in Lockwood (1979, p. 157); translation and historical terminology retained
Cosmology & key terms
Plant persons, vision and power
In Shuar accounts analysed by Rubenstein, plant-granted visions are not private images superimposed on an otherwise complete social world. They help constitute the person by mediating an encounter with power that may appear through ancestors, animals, meteorological force or other-than-human figures. Arutam is better understood as a consequential relation and acquired force than as a stable “god of maikua.” Maikua belongs to a repertoire that also includes tobacco and natem; the vision is shaped by kin, place, secrecy, narrative and subsequent action (Rubenstein, 2012).
In western Amazonian vegetalismo, a plant may be known through diet, dream, song, bodily effect and the agency attributed to its owner or mother. Toé is often characterised as forceful and difficult, and its teaching may be considered unusually exacting. In northern Peru, misha forms enter a Christian-Indigenous cosmos materialised through mesas, saints, lagoon waters, staffs, stones, swords, perfumes and opposing fields of power. These systems make the plant an actor within an assemblage; neither alkaloid content nor an isolated “myth” exhausts its identity (Luna, 1986; De Feo, 2004).
- Arutam
- Shuar term for a power/vision relation important to personhood, courage and life trajectory. It is encountered through several plant and non-plant practices, not identified with Brugmansia alone (Rubenstein, 2012).
- Maikua
- Shuar/Jivaroan name applied to tree-trumpet medicines. Species mapping varies among sources and local cultivars.
- Misha
- Northern Peruvian folk category for named Brugmansia forms whose morphology, action and mythic associations organise specialist knowledge (De Feo, 2004).
- Borrachero
- Spanish-derived “intoxicating” plant-name used in Colombia for several Brugmansia forms and sometimes unrelated plants. In Sibundoy it belongs to an elaborate cultivated classification.
- Toé
- Western Amazonian vernacular term for Brugmansia medicines, teacher plants and occasional ayahuasca admixtures; not intrinsically species-specific.
Art, gardens and ritual objects
Visionary phenomenology
The recurrent experiential signature is a delirious dream enacted within waking space. Apparitions may be fully formed people, animals or objects rather than geometric overlays; the experiencer may converse with them, handle absent things or undertake journeys without recognising the scene as hallucinatory. Attention fluctuates, sequences break, and later memory may be fragmentary or absent. Ethnographic descriptions of travel, instruction and encounter cannot be collapsed into clinical symptom lists, but their unusually concrete and reality-like scenes are consistent with central antimuscarinic disruption (Lockwood, 1979; Shepard, 1998; Isbister et al., 2003; Doan et al., 2019).
Recurrent motifs across records
Accounts and comparison
Clinical series provide comparatively precise timing but occur in emergency settings; ethnographies preserve meaning and ritual structure but often omit dose, voucher or clock time. Jayawickreme et al. (2019) report a case whose delirium resolved over approximately 18 hours while mydriasis persisted longer. Isbister et al. (2003) found confusion, agitation, hallucinations and mydriasis prominent across presumed angel’s-trumpet poisonings. Traditional accounts may describe the same scene-form as travel or disclosure. These genres should be read alongside one another without treating either as a transparent substitute for the other.
> The Shuar Imaginary begins with a plant-granted vision. — Rubenstein (2012, p. 53)
Contemporary status
Conservation and cultivated survival
| Red List status | Extinct in the Wild IUCN assessment e.T51247699A58913403. The species survives extensively in cultivation and in naturalised populations, but no verified native wild population is known (Hay, 2014). |
| Conservation unit | Counting ornamental trees does not measure the diversity of species lineages, named Indigenous cultivars or associated knowledge. Hybridisation, clonal duplication, misidentification and virus infection complicate ex situ inventories. |
| Pathogens | Brugmansia hosts several potyviruses. Colombian datura virus shows low diversity compatible with anthropogenic movement in cultivated material; 2025 work documented leaf deformation and host responses in medicinal cultivars (Chellemi et al., 2011; Hernández-Duarte et al., 2025). |
| Naturalisation | Cultivation escapes are recorded in warm regions worldwide. A 2020 record from continental Europe illustrates the species’ ability to naturalise locally while remaining extinct within the meaning of its native-range Red List assessment (Stinca, 2020). |
Economies, circulation and transformation
The largest contemporary economy is ornamental: specialist nurseries and collectors trade cuttings and cultivars selected for colour, fragrance, double flowers and compact form. A smaller medicinal and ceremonial circulation links household remedies, plant markets, retreat economies and global ethnobotanical horticulture. There is no reliable species-specific global market valuation. The key asymmetry is that horticultural abundance privileges conspicuous hybrids while rare named medicinal clones and their custodial histories may remain undocumented.
Urban “toé” discourse, internet experience reports and ayahuasca tourism have detached the name from voucher identity and from the apprenticeship systems described in ethnography. At the same time, Kamëntsá, Inga, Shuar and other Indigenous knowledge holders continue to publish, teach and govern plant relations in contemporary political settings. Transformation is therefore not a simple transition from “traditional” to “modern,” but an encounter among Indigenous continuity, market horticulture, pharmacology, conservation and digital circulation.
Law and regulation
| Jurisdictional level | Status | Scope |
|---|---|---|
| International treaties | Not listed as a plant under the 1961 or 1971 UN drug schedules | Scopolamine and atropine are established medicines rather than internationally scheduled psychotropics; pharmaceutical manufacture and trade are regulated through medicines law. |
| United States federal | No federal Controlled Substances Act listing for Brugmansia | Scopolamine products are FDA-regulated drugs. State, local, consumer-product and poisoning statutes may create additional rules. |
| United Kingdom | No named listing in the Misuse of Drugs Act schedules | Medicinal scopolamine and atropine are regulated as medicines; supply claims and harmful administration fall under other legal regimes. |
| National / local variation | Variable | Some jurisdictions regulate sale, cultivation for ingestion or particular preparations. Common-name listings may capture Datura and Brugmansia unevenly. |
Patents and research frontier
- USPP14817P2 · 2004 — plant patent for the variegated hybrid cultivar ‘Snowbank’; a claim over a clonally reproduced horticultural novelty, not over B. suaveolens as a species or Indigenous knowledge.
- US20100199395P1 · 2010 — application for the compact cultivar ‘Angel’s Summer Dream’, illustrating the ornamental focus of Brugmansia intellectual property.
- WO2020097635A1 · 2020 — extraction process for scopolamine-rich plant material. The claims concern industrial processing and are not specific ownership of B. suaveolens.
- US11739084B2 · 2023 — synthetic routes to scopolamine and atropine, explicitly moving production beyond dependence on cultivated tropane crops.
Colombian LC–MS research compares organs, localities, species and hybrids, suggesting that environment and extraction method may explain more variation than folk or formal taxonomic labels alone. The current report is a bioRxiv preprint (Rojas et al., 2023).
Recent genomic and inoculation work tracks viruses through cultivated medicinal plants, making pathogen-free living collections part of conservation as well as horticulture (Hernández-Duarte et al., 2025).
Reviews catalogue flavonoids, volatile compounds and extract activities beyond tropane alkaloids. Most results remain in vitro or animal studies, with inconsistent taxonomic authentication and extraction standards (Pundir et al., 2022; da Costa et al., 2023).
The strongest research need is paired documentation: vouchered plants and metabolomics alongside Indigenous names, custodianship, preparation categories and consent. Species lists alone cannot conserve a cultivar system.
Bibliography
Botany & taxonomy
Chemistry & pharmacology
Conservation & ecology
Ethnography, ritual & cosmology
Visionary phenomenology
Cross-correlations
| Banisteriopsis caapi | Species monograph: toé is an occasional admixture or separate teacher plant in some western Amazonian lineages; it is not a defining constituent of ayahuasca. RITUAL ASSOCIATE |
| Echinopsis pachanoi | Species monograph: northern Peruvian misha may enter the wider huachuma–mesa pharmacopoeia while retaining distinct tropane pharmacology. ANDEAN CEREMONIAL ASSOCIATE |
| Nicotiana rustica | Species monograph: tobacco accompanies purification, diagnosis and vision-seeking in several Amazonian systems that also know Brugmansia. RITUAL ALLY |
| Brugmansia × candida | Hybrid complex central to Sibundoy named cultivars and much ornamental material; it must not be silently recorded as B. suaveolens. CULTIVATED HYBRID / TAXONOMIC CAUTION |
| Brugmansia sanguinea | High-Andean red-flowered species with distinct morphology, ecology and ethnobotanical history. CONGENER / COMPARATIVE TRADITION |
| Datura spp. | Herbaceous sister genus sharing tropane chemistry but differing in habit, flower orientation and fruit. Older literature often joins both as “tree” and “herbaceous” daturas. PHYLOGENETIC SISTER / HISTORICAL CONFLATION |
| Andean Huachuma–Mesa Complex | Cultural complex page: northern Peruvian mesa, misha folk taxonomy, healing arts and material culture. INTERSECTING CEREMONIAL COMPLEX |