Few plant genera span as vast a morphological gulf as Dracaena. At one extreme stands the Canary Islands dragon tree (Dracaena draco) — a massively thick-trunked, umbrella-crowned tree that can live for centuries and bleeds red “dragon’s blood” resin when cut, a substance that has been traded across the Mediterranean since antiquity. At the other extreme sits the snake plant (Dracaena trifasciata, formerly Sansevieria trifasciata) — a stemless, rhizomatous succulent with stiff, upright, sword-shaped leaves that is one of the most popular houseplants on Earth, found in millions of homes, offices, and shopping malls worldwide.
Between these two extremes lies the corn plant (Dracaena fragrans), the lucky bamboo (Dracaena sanderiana), the Madagascar dragon tree (Dracaena marginata), and some 200 other species of trees, shrubs, and succulent perennials distributed across the tropics and subtropics of the Old and New Worlds.
With approximately 214 accepted species (POWO, 2025), Dracaena is one of the largest and most commercially important genera among the Agavoids — the broad assemblage of rosette-forming plants in the family Asparagaceae that also includes Yucca, Agave, Nolina, and Dasylirion — and one of the most dramatically reshaped by recent molecular taxonomy, following the absorption of the entire genus Sansevieria in 2018.
A Note on the Subfamily
Dracaena belongs to the family Asparagaceae, subfamily Nolinoideae (APG IV, 2016). It is not a member of the subfamily Agavoideae — the group that includes Agave, Yucca, Hesperoyucca, and Hesperaloe. Although dracaenas and agavoids share the same family and some superficial resemblances (rosette habit, sword-shaped leaves, succulent tendencies), they are in different subfamilies and are not closely related within Asparagaceae.
The sansevierias — now part of Dracaena — were historically placed in various families (Dracaenaceae, Ruscaceae, Agavaceae) before molecular data clarified their position in Nolinoideae.
Quick Genus Facts
| Genus | Dracaena Vand. ex L. |
| Family | Asparagaceae, subfamily Nolinoideae |
| Accepted species (POWO, 2025) | ~214 |
| Including | All former Sansevieria (~80 spp.) and Pleomele species |
| Excluding | Chrysodracon (Hawaiian species — segregated as separate genus) |
| Distribution | Pantropical: Africa, Madagascar, Arabia, Indian subcontinent, SE Asia, Macaronesia, Central America, Caribbean |
| Growth types | Arborescent (tree dracaenas) and rhizomatous (sansevierias) |
| Etymology | From Greek drakaina (δράκαινα), “female dragon” — referring to the red resin of Dracaena draco |
Taxonomy — Three Genera Become One
The modern circumscription of Dracaena is the result of two major taxonomic mergers based on molecular phylogenetic evidence.
The absorption of Pleomele
Pleomele Salisbury was a genus of tropical dracaenoid plants distinguished by their long perianth tube and filiform staminal filaments (Brown, 1914). Molecular studies (Lu & Morden 2010, 2014) showed that Pleomele species are embedded within Dracaena, and the genus has been universally sunk. The Hawaiian species formerly placed in Pleomele were found to be phylogenetically distinct from both Dracaena and the mainland Pleomele, and were segregated into a new genus, Chrysodracon P.-L.Lu & Morden (2014).
The absorption of Sansevieria
Taxonomic note on Sansevieria. The genus Sansevieria Thunberg (1794) — comprising approximately 80 species of succulent, rhizomatous plants known as snake plants, mother-in-law’s tongues, and bowstring hemps — was sunk into Dracaena by Christenhusz et al. (2018) and Takawira-Nyenya et al. (2018), following molecular phylogenetic studies (Bogler & Simpson 1996; Chen et al. 2013; Lu & Morden 2014) that demonstrated Sansevieria is nested within Dracaena, rendering Dracaena sensu stricto paraphyletic. POWO and most modern databases follow this treatment.
However, the name Sansevieria remains overwhelmingly dominant in the horticultural trade, among collectors, and in popular culture. Some researchers continue to publish new species under Sansevieria (e.g. Burkart et al. 2025). This page uses Dracaena as the accepted genus while providing the familiar Sansevieria synonym for every relevant species.
The merger is based on solid molecular evidence but remains morphologically jarring: sansevierias are stemless, rhizomatous, leaf-succulent plants adapted to arid and semi-arid habitats, while traditional dracaenas are arborescent or shrubby trees and shrubs of tropical forests. The two groups look nothing alike — a fact that has generated significant resistance from horticulturists and some taxonomists.
The phylogenetic picture
Lu & Morden (2014) found that Dracaena americana and Dracaena cubensis (the New World species) together form a clade that is sister to all remaining Dracaena sensu lato (including the Sansevieria clade). The Sansevieria clade itself originated in the Late Miocene to Pliocene (~6.5–2.7 million years ago) — a remarkably recent radiation. Within the clade, cylindrical leaves evolved independently multiple times, and the different inflorescence types do not correspond to monophyletic groups — a pattern of rampant convergent evolution that has made classification exceptionally difficult.
The Two Worlds of Dracaena
Dracaena sensu lato comprises two fundamentally different growth types — so different that they were treated as separate genera for over two centuries.
Arborescent dracaenas (traditional Dracaena sensu stricto)
Tree-forming or shrubby species with stout, above-ground stems that branch from nodes after flowering or if the growth tip is severed. The trunk has a dracaenoid secondary thickening meristem — a distinctive type of growth quite different from the cambial thickening of dicotyledons. Leaves are arranged in terminal rosettes or spirally along stems — typically long, narrow, arching, and leathery (not succulent). Flowers are small, often fragrant, in branched panicles. Fruit is a berry.
This group includes the dragon trees, the corn plants, the lucky bamboo, and dozens of tropical African and Asian forest species that are among the world’s most widely cultivated houseplants.
Rhizomatous dracaenas (the Sansevieria clade)
Stemless or very short-stemmed species with underground rhizomes and leaves emerging directly from the soil surface. Leaves range from flat and strap-like (Dracaena trifasciata, the classic snake plant) to cylindrical (Dracaena angolensis, formerly Sansevieria cylindrica). Foliage is succulent, often mottled or banded with contrasting colours — a water-storage adaptation to arid and semi-arid habitats. This group is native to Africa, Madagascar, the Arabian Peninsula, and the Indian subcontinent.
Geographic Range
Dracaena sensu lato has a pantropical distribution with major centres of diversity in:
- Tropical and subtropical Africa — the primary centre of diversity for both arborescent dracaenas and sansevierias
- Madagascar — numerous endemic species in both groups
- Macaronesia (Canary Islands, Madeira, Cape Verde) — the iconic dragon trees (Dracaena draco, Dracaena tamaranae)
- Arabian Peninsula and Indian subcontinent — Dracaena cinnabari (Socotra) and the Zeylanica group of sansevierias
- South-East Asia — several tropical forest species
- Central America and the Caribbean — Dracaena americana (Mexico to Costa Rica), Dracaena cubensis (Cuba) — the only New World species, and the most basal clade in the genus
Species Groups — A Practical Overview
The dragon trees
The most iconic group: slow-growing, massively trunked trees of arid and semi-arid habitats that produce the legendary “dragon’s blood” resin — a dark red exudate used since antiquity as a dye, varnish, medicine, and incense. The dragon trees are relicts of a warmer, more humid past, now restricted to isolated populations on islands and mountain escarpments.
- Dracaena draco L. — Canary Islands dragon tree. The type species of the genus. The most widely cultivated dragon tree. Native to the Canary Islands, Madeira, and western Morocco. The famous “El Drago Milenario” of Icod de los Vinos, Tenerife, is one of the oldest known specimens. Hardy to approximately −2 to −5 °C. Widely grown in Mediterranean gardens.
- Dracaena cinnabari Balf.f. — Socotra dragon tree. Endemic to the island of Socotra (Yemen). Distinctive umbrella-shaped crown. Produces the finest dragon’s blood resin. IUCN Vulnerable.
- Dracaena tamaranae Marrero Rodr. et al. — Gran Canaria dragon tree. Described in 1998. Endemic to Gran Canaria. Critically Endangered — fewer than 100 wild individuals.
- Dracaena ombet Kotschy & Peyr. — Nubian dragon tree. Horn of Africa and Arabian Peninsula. IUCN Endangered.
- Dracaena serrulata Baker — Arabian dragon tree. Oman and Yemen.
Southeast Asian Dragon Trees — The Karst Dragons
The dragon tree group includes a third geographic clade that is often overlooked in Western literature: a cluster of five arborescent species native to mainland Southeast Asia, all associated with limestone karst landscapes — the dramatic, razor-sharp rock formations that rise from the tropical forests of southern China, Vietnam, Laos, Cambodia, Thailand, and Myanmar. Unlike the arid-adapted dragon trees of Macaronesia and the Red Sea region, these species grow in tropical or subtropical climates with significantly higher rainfall, but compensate by colonizing cliff faces, hilltops, and rocky outcrops where water availability is reduced by topography and thin soils — a case of edaphic aridity within a wet climate.
These five species share all the defining characters of the dragon tree group (arborescent habit, red resin production, anomalous secondary growth, dense terminal leaf rosettes, thickened filaments), but molecular data confirm that the dragon tree group is not monophyletic: the arborescent habit appears to have evolved independently multiple times within Dracaena. The Southeast Asian species form a clade closely related to each other but not directly derived from the Macaronesian or African dragon trees.
| Species | Range | Status |
|---|---|---|
| Dracaena cochinchinensis (Lour.) S.C.Chen | S. China (Yunnan, Guangxi), Vietnam, Laos, Cambodia, Thailand | Endangered in China (national list since 1987); ~200,000 wild plants |
| Dracaena cambodiana Pierre ex Gagnep. | S. China (Hainan, Guangxi), Vietnam, Cambodia, Laos | Endangered (China) |
| Dracaena jayniana Wilkin & Suksathan | Central & NE Thailand (endemic) | Endangered (IUCN preliminary); 8 known populations, AOO 32 km² |
| Dracaena kaweesakii Wilkin & Suksathan | Thailand (Loei, Lop Buri, Saraburi); possibly Myanmar | Endangered; ~2,500 mature individuals, AOO 44 km²; IISE “Top 10 New Species” 2014 |
| Dracaena yuccifolia Ridl. | Peninsular Thailand, Malaysia | Poorly known |
Of these five species, Dracaena cochinchinensis is by far the most important economically and culturally. It is the official source of Chinese dragon’s blood (龙血竭, Long Xue Jie) — a cornerstone of Traditional Chinese Medicine with over 1,500 years of documented use. It is also the only dragon tree species for which a complete chromosome-level genome assembly has been published (1.21 Gb, 31,619 protein-coding genes), revealing the molecular basis of its exceptional longevity and its injury-induced resin production.
The Thai species Dracaena kaweesakii — described only in 2013 and named one of the world’s “Top 10 New Species” in 2014 — is perhaps the most spectacular of the group, with mature trees bearing hundreds of spreading branches crowned with soft, white-margined leaves and cream flowers with intense orange filaments. It is frequently found on the grounds of Buddhist temples, where it benefits from cultural protection.
All five Southeast Asian dragon trees are threatened, primarily by limestone extraction for concrete manufacturing, overexploitation for resin, and habitat destruction. Their conservation is complicated by their occurrence across multiple countries with different regulatory frameworks, and by the commercial demand for dragon’s blood in the Traditional Chinese Medicine market.
The tropical tree dracaenas (houseplant group)
Shrubby to tree-like species of tropical forests, many of which are among the world’s most popular houseplants — valued for their elegant foliage, tolerance of low light, and air-purifying properties.
- Dracaena aletriformis (Haw.) Bos — Large-leaved dragon tree. A usually single-stemmed shrub or small tree to 5 m, occasionally branching at the base, with large, leathery, dark green strap-shaped leaves up to 1 m long, distinguished by conspicuous white cartilaginous margins. Sweetly scented white flowers open at night in tall panicles, pollinated by moths, followed by orange berries eaten by birds. Native to the coastal and montane forests of eastern South Africa (from Port Elizabeth to Limpopo), Eswatini, and extending northward to southern Mozambique and Kenya, where it grows in the shade of dune forests and along streams in humus-rich soil. An excellent container plant for shady patios and interiors. Formerly widely known as Dracaena hookeriana K.Koch (nom. illeg.).
- Dracaena fragrans (L.) Ker Gawl. — Corn plant. The most popular dracaena houseplant. Glossy, arching leaves with a central yellow stripe in the cultivar ‘Massangeana’. Native to tropical Africa. Cultivars include ‘Janet Craig’, ‘Warneckii’, ‘Lemon Lime’, ‘Compacta’.
- Dracaena reflexa Lam. — Song of India / Song of Jamaica. Dark green leaves in spirals. Madagascar. The variety angustifolia is the widely grown Dracaena marginata (Madagascar dragon tree) — one of the most elegant houseplants, with slender, arching red-edged leaves.
- Dracaena sanderiana Engl. — Lucky bamboo, ribbon dracaena. Marketed worldwide in water-filled containers, often twisted or braided. Despite the common name, it is not a bamboo. Tropical West Africa.
- Dracaena surculosa Lindl. — Gold dust dracaena. Spotted leaves. Tropical West Africa. Formerly Dracaena godseffiana.
- Dracaena arborea (Willd.) Link — Tree dracaena. Large tree to 15 m. Tropical Africa.
- Dracaena steudneri Engl. — Large tree of East African montane forests.
The New World dracaenas
Only two species of Dracaena are native to the Americas — and they are phylogenetically the most basal clade in the genus, sister to all other Dracaena including the Sansevieria clade (Lu & Morden 2014). This makes them of enormous evolutionary interest.
- Dracaena americana Donn.Sm. — American dracaena. Mexico to Costa Rica. A tree of tropical deciduous forests.
- Dracaena cubensis Vict. — Cuban dracaena. Endemic to Cuba.
The Sansevieria clade — the snake plants
Approximately 80 species of stemless, rhizomatous, leaf-succulent plants formerly classified in the genus Sansevieria. Native to Africa, Madagascar, the Arabian Peninsula, and the Indian subcontinent. They are the most commercially important group within Dracaena and include several of the world’s best-selling houseplants.
Flat-leaved snake plants
- Dracaena trifasciata (Prain) Mabb. (syn. Sansevieria trifasciata) — Snake plant, mother-in-law’s tongue. The most widely grown sansevieria worldwide. Stiff, upright, sword-shaped leaves with dark green cross-banding and yellow margins (var. laurentii). West Africa. Extremely tough — tolerates low light, drought, and neglect. NASA study species for air purification. Cultivars include ‘Laurentii’, ‘Moonshine’, ‘Bantel’s Sensation’, ‘Golden Hahnii’ (bird’s nest type).
- Dracaena zeylanica (L.) Mabb. (syn. Sansevieria zeylanica) — Ceylon bowstring hemp. Strap-like, mottled leaves. Indian subcontinent and Sri Lanka. Fibres historically used for bowstrings.
- Dracaena hyacinthoides (L.) Mabb. (syn. Sansevieria hyacinthoides) — Iguanatail, bowstring hemp. Mottled leaves with light green bands and yellow edges. Southern Africa.
- Dracaena masoniana (Chahin.) Byng & Christenh. (syn. Sansevieria masoniana) — Whale fin sansevieria. Enormous single leaf (up to 1.2 m). Central Africa. A collector’s favourite.
- Dracaena pinguicula (P.R.O.Bally) Byng & Christenh. (syn. Sansevieria pinguicula) — Walking sansevieria. Produces aerial stolons that “walk” across the soil. East Africa. Highly prized by collectors.
Cylindrical-leaved snake plants
- Dracaena angolensis (Welw. ex Carrière) Byng & Christenh. (syn. Sansevieria cylindrica) — African spear, cylindrical snake plant. Round, cylindrical, spear-like leaves. Angola. Often braided in cultivation. One of the most sculptural houseplants.
- Dracaena stuckyi (God.-Leb.) Byng & Christenh. (syn. Sansevieria stuckyi) — Tall, cylindrical leaves to 2 m. East Africa.
- Dracaena bacularis (Pfennig ex A.Butler & Jankal.) Byng & Christenh. (syn. Sansevieria bacularis) — Very thin cylindrical leaves. Marketed as “mikado” sansevieria.
Compact and rosette-forming types (bird’s nest sansevierias)
- Dracaena trifasciata ‘Hahnii’ — Bird’s nest snake plant. A compact, rosette-forming cultivar of the common snake plant. Only 15–20 cm tall. Available in numerous colour forms (‘Golden Hahnii’, ‘Silver Hahnii’, ‘Jade’). Ideal for desks and small spaces.
Cultivation — Two Regimes for Two Growth Types
Because Dracaena sensu lato spans such a wide ecological range, cultivation requirements differ markedly between the two main groups.
| Parameter | Arborescent dracaenas | Sansevieria clade (snake plants) |
|---|---|---|
| Light | Bright indirect to moderate shade | Bright light to low light (extremely tolerant) |
| Watering | Moderate; allow topsoil to dry between waterings | Low; allow soil to dry completely; very drought-tolerant |
| Soil | Well-drained, fertile potting mix | Very well-drained; cactus/succulent mix |
| Humidity | Moderate to high; some species need misting | Low to moderate; tolerates dry air |
| Temperature | 15–28 °C; most are frost-tender | 15–30 °C; frost-tender but tolerate short cold snaps |
| Outdoors | Dracaena draco: Mediterranean climates (zone 9b+); others: frost-free only | Zone 10–12; outdoors year-round in tropics/subtropics only |
| Growth rate | Slow to moderate | Slow |
| Toxicity | Toxic to cats and dogs (saponins) | Mildly toxic to cats and dogs |
The dragon tree exception
Dracaena draco is the only commonly cultivated dracaena that can be grown outdoors in Mediterranean climates. It tolerates brief frosts to approximately −2 to −5 °C and is widely planted in gardens along the French and Italian Riviera, in Spain, and in California. All other dracaenas are strictly tropical or subtropical and must be grown as houseplants in temperate regions.
Pests and Diseases
Root rot: The primary killer, especially for snake plants overwatered in winter. Allow the soil to dry completely between waterings.
Mealybugs and scale insects: Common on houseplant dracaenas, particularly in low-light, low-ventilation conditions. Inspect leaf axils and undersides regularly.
Spider mites: A problem in dry indoor environments, especially on Dracaena marginata. Increase humidity and mist foliage to prevent.
Leaf tip browning: Usually caused by fluoride sensitivity (common in Dracaena fragrans and Dracaena marginata). Use distilled or rainwater; avoid fluoridated tap water.
Soft rot (Erwinia): A bacterial disease causing mushy, foul-smelling tissue in sansevierias. Caused by overwatering. No cure — remove affected leaves immediately and improve drainage.
Conservation
Several Dracaena species are of serious conservation concern:
- Dracaena tamaranae — Critically Endangered. Fewer than 100 wild individuals on Gran Canaria.
- Dracaena cinnabari — Vulnerable. Socotra. Declining due to climate change and overgrazing by goats.
- Dracaena ombet — Endangered. Horn of Africa. Declining populations.
- Numerous sansevieria species with restricted ranges in East Africa are poorly studied and potentially at risk.
The dragon trees in particular are relict species — survivors of a once-widespread laurel forest flora that has been retreating since the Pliocene. Their isolated island and mountain populations are highly vulnerable to climate change, habitat loss, and overgrazing.
Frequently Asked Questions
Is Sansevieria still a valid genus?
Not according to POWO and most modern authorities. Molecular studies show that Sansevieria is nested within Dracaena, and all former Sansevieria species have been transferred to Dracaena. However, the name Sansevieria remains overwhelmingly dominant in horticulture and is still used by some taxonomists. On this site, we use the accepted Dracaena name with the Sansevieria synonym provided for every species.
What is the snake plant’s correct name now?
Dracaena trifasciata (Prain) Mabb. The familiar synonym Sansevieria trifasciata remains widely used in the trade.
Is Dracaena marginata a valid species?
Strictly speaking, no. POWO treats it as Dracaena reflexa var. angustifolia. However, Dracaena marginata is the name used by virtually every nursery, garden centre, and plant care website in the world. Both names refer to the same plant.
Is Dracaena related to Yucca or Agave?
They share the same family (Asparagaceae) but are in different subfamilies. Dracaena is in Nolinoideae; Yucca and Agave are in Agavoideae. They are not closely related within the family, despite some superficial resemblances in leaf shape.
Are dracaenas toxic to pets?
Yes. All Dracaena species (including sansevierias) contain saponins that are toxic to cats and dogs if ingested, causing vomiting, drooling, and loss of appetite. Keep plants out of reach of pets.
Reference Databases and Online Resources
Bibliography
- Brown, N.E. (1914). Notes on the genera Cordyline, Dracaena, Pleomele, Sansevieria and Taetsia. Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 1914: 273–279.
- Brown, N.E. (1915). Sansevieria: a monograph of all known species. Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 1915: 185–261.
- Lu, P.-L. & Morden, C.W. (2014). Phylogenetic relationships among dracaenoid genera (Asparagaceae: Nolinoideae) inferred from chloroplast DNA loci. Systematic Botany 39: 90–104.
- Takawira-Nyenya, R., Mucina, L., Cardinal-McTeague, W.M. & Thiele, K. (2018). Sansevieria (Asparagaceae, Nolinoideae) is a herbaceous clade within Dracaena: inference from non-coding plastid and nuclear DNA sequence data. Phytotaxa 376: 254–276.
- Christenhusz, M.J.M., Fay, M.F. & Byng, J.W. (2018). The Global Flora 4: 1–55. [New combinations transferring Sansevieria to Dracaena.]
- Van Kleinwee, E. et al. (2022). Plastid phylogenomics of the Sansevieria clade of Dracaena (Asparagaceae) resolves a recent radiation. Molecular Phylogenetics and Evolution 169: 107388.
- Bogler, D.J. & Simpson, B.B. (1996). Phylogeny of Agavaceae based on ITS rDNA sequence variation. American Journal of Botany 83: 1225–1235.
- Jankalski, S. (2008, 2015). Subgenera and sections in Sansevieria. Sansevieria journal, various issues.
- Mabberley, D.J. (2017). Mabberley’s Plant-Book. 4th edition. Cambridge University Press.