Dracaena steudneri

Dracaena steudneri Engl. is a large treelike species belonging to the genus Dracaena, native to upland forests across a wide arc of eastern and south-central Africa stretching from Ethiopia to Zimbabwe. Known as the northern large-leaved dragon tree, it is one of the most imposing and ecologically significant Dracaena species on the African continent, capable of reaching 6–15 m in height, occasionally more, with a single erect trunk bearing a branching crown of very long, leathery, narrowly lanceolate leaves. It is widely planted as an ornamental along roadsides and in gardens across East Africa, valued for its striking architectural form and ease of establishment. The species holds deep cultural significance in the region, serving as a boundary marker, a plant of ceremonies and ancestral veneration, and a source of traditional medicine across multiple ethnic groups in Tanzania, Kenya, Rwanda, and Uganda. Dracaena steudneri has also attracted scientific interest for its high-quality leaf fibre content and as a documented host plant for the butterfly Artitropa erinnys (Trimen), the bush nightfighter. Importantly, its name was historically misapplied to Dracaena fragrans (L.) Ker Gawl. in parts of East Africa, creating longstanding confusion in both botanical and horticultural literature.

How to identify Dracaena steudneri ?

Dracaena steudneri is an evergreen tree, typically 3–15 m tall in forest habitats, with occasional specimens recorded at 25 m. The trunk is single, erect, and can reach up to 45 cm in diameter in mature forest trees. The crown branches, especially after a flowering episode at the main stem apex. Young stems are distinctly angular; persistent angular branchlets remain attached to the stem for some time after leaf fall before turning orange — a characteristic noted in East African field guides.

Leaves are the most diagnostic feature: leathery (coriaceous), narrowly lanceolate, sessile, and clustered at the branch ends in dense apical rosettes. They are 40–130 cm long and 4–16 cm wide, with a base that is narrowed and clasping, and an apex that tapers to an acute point. The upper surface is glossy and mid- to dark green. These very long, strap-like leaves distinguish Dracaena steudneri from Dracaena fragrans, whose leaves are broader (up to 12 cm wide) and more lanceolate with a tendency to droop.

The inflorescence is initially erect and becomes pendulous as the fruits develop. It is paniculate, 0.3–1 m long (occasionally up to 2 m) and up to 1.5 m wide, bearing flowers in almost globose clusters of up to 100 flowers. Flowers are white, cream, or greenish-white, 11–18 mm long, with a tube of 6–10 mm and lobes of 5–8 mm, which are translucent and single-ribbed. The inflorescence opens at night and the flowers are fragrant.

Fruits are globose berries, 12–30 mm in diameter, turning from green to bronze, then dark purple to blackish-red at maturity, with orange pulp and white globose seeds approximately 10 mm in diameter. Birds — including the speckled mousebird (Colius striatus) — consume the fruit pulp and disperse the seeds. Seeds do not possess a true seed coat and can germinate rapidly after falling to the ground when moisture and temperature conditions are favourable.

Known hybrids

No natural or horticultural hybrids involving Dracaena steudneri have been documented in the scientific literature.

Possible confusion with similar species

The most important and historically persistent source of confusion is with Dracaena fragrans (L.) Ker Gawl. The name Dracaena steudneri was for many decades erroneously applied to Dracaena fragrans in parts of East Africa, particularly in Uganda, as noted by Dale & Greenway (1961). The confusion arises because both species are large-leaved treelike Dracaena species planted as ornamentals across the same region, and field records of Dracaena fragrans in East Africa may need to be reassessed to determine whether they refer to one species or the other.

The key morphological distinctions are: Dracaena steudneri has narrower, longer, and more rigidly leathery leaves (40–130 cm × 4–16 cm) arranged in tight apical rosettes, a single erect trunk, and fruits that turn blackish-red at maturity with orange pulp. Dracaena fragrans has broader, more flexible, drooping leaves (20–150 cm × 2–12 cm), is typically multi-stemmed from the base, and produces orange-red berries with markedly fragrant white-to-pink flowers. The nocturnal flower fragrance of Dracaena fragrans is exceptionally intense; Dracaena steudneri flowers are also fragrant but less conspicuously so. In East Africa, the angular, persistent post-floral branchlets turning orange are useful field characters for Dracaena steudneri.

Dracaena steudneri is also occasionally confused with Dracaena afromontana Mildbr., a related East African montane species. Dracaena afromontana is generally smaller (to about 5 m), with shorter leaves, and has a more restricted altitude range.

Taxonomy

Dracaena steudneri was described in 1895 by Adolf Engler in Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Teil C, page 143. In the same publication, Engler also described Dracaena papahu — now treated as a heterotypic synonym of Dracaena steudneri by POWO. The type specimen was collected in Ethiopia, at Gondar, Dschibba, by Carl Theodor Hermann Steudner (collector number 477; holotype at B†, destroyed; isotype at S; material at BR and K). The specific epithet steudneri honours Steudner (1832–1863), a German physician, botanist, and explorer who worked in Ethiopia and Eritrea before dying there at the age of thirty.

POWO lists 3 synonyms: one homotypic (Pleomele steudneri (Engl.) N.E.Br., 1914) and two heterotypic (Dracaena papahu Engl., 1895; Pleomele papahu (Engl.) N.E.Br., 1914).

According to POWO, the accepted name is Dracaena steudneri Engl., placed in the family Asparagaceae, subfamily Nolinoideae (also treated as Convallarioideae), genus Dracaena. POWO characterizes it as a shrub or tree of the seasonally dry tropical biome, with a native range from Ethiopia to southern tropical Africa. The IPNI identifier is 534379-1.

The primary botanical reference for the species in East Africa is Mwachala, G. & Mbugua, P.K. (2007), Dracaenaceae, in Flora of Tropical East Africa, pages 1–43, which provides the authoritative morphological account used here.

In the wild

Distribution

Dracaena steudneri has one of the widest distributions of any Dracaena species in eastern and south-central Africa. POWO lists 13 native territories: Angola, Burundi, DR Congo, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, South Sudan, Tanzania, Uganda, Zambia, and Zimbabwe. This range covers a broad meridional belt of highland and montane East Africa, from Ethiopia and South Sudan in the north to Zimbabwe and Zambia in the south.

Habitat and climate

Dracaena steudneri grows in humid forest relicts and secondary forests at altitudes of approximately 1,300–2,500 m above sea level, with annual rainfall of 1,000–2,200 mm. It tolerates a range of forest types — the Flora of Tropical East Africa records it from forest margins, riverine forest, montane forest, and secondary growth — and can persist as isolated trees long after surrounding forest has been cleared. In Uganda, it is noted that “where forests are encroached upon, this tree will always be left, and in many instances is the only sign that the area was once forest” (World Agroforestry Centre), reflecting both its cultural protection and its persistence in degraded landscapes. The species produces a new shoot at the lower end of the inflorescence stalk after flowering — a vegetative regeneration mechanism that contributes to persistence after the main trunk flowers and begins to senesce.

POWO characterizes the species as primarily associated with the seasonally dry tropical biome, though its actual habitat spans the humid montane forest belt of the East African Rift system and surrounding highlands.

Conservation status

Dracaena steudneri is assessed as Least Concern on the IUCN Red List (IUCN 3.1). Its wide distribution, large population, tolerance of secondary vegetation, and cultural protection as a landscape tree across East Africa mean it does not face significant global conservation threats. Conservation status should be verified against the current IUCN Red List for the most recent assessment.

Outdoor / In-ground cultivation

In suitable warm climates, Dracaena steudneri is a bold and fast-growing ornamental tree, widely planted along roadsides and in parks and gardens across East Africa. It is noted in horticultural literature as “commonly planted as an ornamental in East Africa” (Gardner 1950, cited in Flora of Tropical East Africa context). The World Agroforestry Centre describes it as fast-growing and requiring little management once established, with cuttings rooting easily.

Permanent outdoor cultivation in the ground is appropriate in frost-free tropical and subtropical climates, corresponding broadly to USDA Hardiness Zones 10–12. Given its natural altitudinal range (1,300–2,500 m) in the mountains of East Africa, it may tolerate somewhat cooler conditions than most lowland Dracaena species; minimum temperatures of approximately 5–8 °C are likely survivable for short periods, though frost will damage or kill unprotected plants. This makes it arguably more cold-tolerant at the margins than equatorial lowland species such as Dracaena arborea or Dracaena reflexa, though formal hardiness data from temperate cultivation are not available.

In appropriate climates, the species thrives in partial shade to full sun. A well-draining, moderately fertile soil with adequate moisture is preferred. Once established, it is relatively drought-tolerant, consistent with its occurrence across seasonally dry areas of East Africa. Propagation from stem cuttings is easy and reliable; the World Agroforestry Centre notes that cuttings root readily.

Container cultivation

Dracaena steudneri is not commonly grown as a houseplant in temperate regions, as its ultimate size (up to 15 m) and the scale of its leaf rosettes make sustained indoor cultivation impractical. Young plants can be maintained in large containers in warm, bright indoor environments as architectural accent plants, with care requirements similar to those of other large-leaved arborescent Dracaena species: well-draining substrate, bright indirect light, consistent warmth (minimum 12–15 °C), and watering when the top of the substrate has dried.

Like all Dracaena species, it is sensitive to fluoride in tap water, which causes necrotic leaf tip burn. Using filtered or rainwater reduces this problem. Fertilize sparingly during the growing season.

Container cultivation is primarily of interest for young specimen plants in tropical conservatories, botanical gardens, or very large atrium plantings in warm climates.

Propagation

Stem cuttings

Dracaena steudneri propagates readily from stem cuttings, which is the most common method used in East African horticultural practice. Sections of stem with nodes root easily when placed in moist substrate, as noted in the World Agroforestry Centre’s account. The process follows the standard Dracaena approach: cut sections of 15–30 cm from healthy stems, allow cut surfaces to callus briefly, treat with rooting hormone if available, and insert into a well-aerated, moist rooting medium at 22–27 °C. Roots typically develop within 4–6 weeks.

Seed propagation

Dracaena steudneri seeds can be collected from the dark-ripened fruits and germinate readily when conditions are favourable. The Research Gate chapter on the species (Bekele-Tesemma context, 2007 and chapter 24 context) notes that seeds can germinate within a few days after being dispersed from the fruit pulp, with vigorous multiple radicles. Seeds should be sown fresh — they do not possess a true seed coat and do not store well. Sow at 22–27 °C in moist, well-draining seed-starting medium; germination is rapid under warm, humid conditions. Eleven-month-old seedlings raised from fresh seeds have been successfully produced in research settings.

Wildings (self-sown seedlings found beneath parent trees) are also a practical source of planting material, as noted in East African agroforestry literature.

Pests and diseases

Dracaena steudneri is the primary food plant of the larvae of the bush nightfighter butterfly, Artitropa erinnys (Trimen) (Hesperiidae), whose caterpillars feed on the leaves. In East African settings, heavy larval infestations can defoliate branches. Research on this lepidopteran-Dracaena interaction indicates that leaf extracts from related Dracaena arborea have insecticidal properties, suggesting the genus may deploy chemical defences against herbivores; one documented case records that cut leaves of Dracaena steudneri placed in a box with caterpillars of Charaxes (Nymphalidae) caused their death.

As with all arborescent Dracaena species, root rot caused by overwatering in container cultivation is the primary disease risk. In outdoor tropical settings, the species is generally robust and problem-free. Leaf tip necrosis in container or houseplant settings is most commonly attributable to fluoride accumulation from tap water.

Cold hardiness

Dracaena steudneri is the most cold-adapted of the arborescent Dracaena species covered in this silo, owing to its natural occurrence in the highlands of East Africa at 1,300–2,500 m altitude. At these elevations, night temperatures in the African Rift system can drop considerably, and the species regularly experiences cooler conditions than any lowland tropical Dracaena. This suggests a degree of cold tolerance substantially greater than that of equatorial lowland species.

However, formal data on cold hardiness in temperate outdoor cultivation are extremely limited. No documented accounts from specialist gardening forums (Palmtalk, IPS, etc.) relating specifically to outdoor cultivation of Dracaena steudneri in temperate marginal zones have been identified. USDA Zones 10–12 are the standard recommendation for permanent outdoor cultivation; survival in Zone 9b with protection may be possible given the species’ highland ecology, but this cannot be confirmed without documented evidence.

As a container plant in temperate regions, the relevant minimum is approximately 8–12 °C, which is somewhat lower than the 15 °C commonly advised for lowland Dracaena species — consistent with its montane origin.

Traditional and cultural uses

Dracaena steudneri is one of the most culturally important plants in East African societies, sharing this significance with other large Dracaena species across the region. Its uses span boundary demarcation, ancestral and ritual veneration, traditional medicine, and ecological land markers.

Across East Africa, Dracaena species are planted to mark field and property boundaries, grave sites, and the edges of sacred groves. In northeastern Tanzania, Sheridan (2008) has documented the ceremonial and symbolic role of Dracaena as a boundary and “coolness” plant — a living embodiment of ancestral blessing and peace — in Pare society. In Kenya, the World Agroforestry guide for the country notes that dracaenas are “important ceremonial plants” and that the species “has great cultural significance.” The persistence of Dracaena steudneri as a lone sentinel tree long after surrounding forest clearance reflects this cultural protection: people often leave the tree standing deliberately.

Medicinal uses of Dracaena steudneri are well documented across multiple countries. In Tanzania, extracts from the plant are used in traditional medicine to treat splenomegaly, hernias, asthma, and chest problems. In Rwanda, the plant is used to treat liver diseases. In Kenya, stem extracts are used to manage hepatic liver ailments, as a treatment for measles, and to reduce pain during childbirth. These uses, documented in a peer-reviewed pharmacological study (PMC9228254), have stimulated phytochemical research: a new chalcone and additional antimicrobial chemical constituents have been isolated from Dracaena steudneri, with confirmed antimicrobial activity.

Additionally, the species is being investigated for its high-quality fibre content, with potential textile or industrial applications identified in ongoing research.

Toxicity note: as with other Dracaena species, Dracaena steudneri contains saponins and should be kept out of reach of companion animals. Cats and dogs ingesting Dracaena material typically show vomiting, drooling, and lethargy.

FAQ

Is Dracaena steudneri the same as Dracaena fragrans? No. These are two distinct species, though the name Dracaena steudneri was historically misapplied to Dracaena fragrans in parts of East Africa, causing considerable confusion. Dracaena steudneri has narrower, more leathery leaves, a single trunk, and darker fruits turning blackish-red; Dracaena fragrans is multi-stemmed, has broader, more flexible leaves, and bears exceptionally fragrant flowers. The two species may co-occur in the same East African gardens and roadsides, compounding the confusion.

How large does Dracaena steudneri grow? In forest habitats, typical trees reach 6–15 m, with exceptional specimens up to 25 m recorded. As an ornamental roadside or garden tree in East Africa, mature individuals of 6–10 m are common. Young growth is fast, making it an effective ornamental and hedging tree in suitable climates.

Can Dracaena steudneri be grown outside East Africa? In tropical and subtropical climates (USDA Zones 10–12), yes. Given its montane origin, it may tolerate slightly cooler conditions than other large Dracaena species. In temperate regions, it can be grown as a container plant when young, but its ultimate size makes long-term indoor cultivation impractical.

What are the large white seeds found inside the fruit? The globose white seeds (approximately 10 mm diameter) inside the dark-fleshed berries are unusual in that they lack a true seed coat. They can germinate rapidly — within days — after being released from the fruit pulp, often facilitated by birds such as the speckled mousebird that strip the pulp and deposit the seeds.

Why is Dracaena steudneri often the only tree left when a forest is cleared in East Africa? Because it is actively protected by local communities for its cultural, spiritual, and medicinal significance. It is used to mark boundaries, graves, and sacred sites, and is associated with ancestral blessing and peace in multiple East African cultures. Land clearers routinely spare it deliberately.

Reference websites

Plants of the World Online (POWO) — accepted name, synonymy, distribution: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:534379-1

International Plant Names Index (IPNI) — nomenclatural data, IPNI ID 534379-1: https://ipni.org/n/534379-1

GBIF — Global Biodiversity Information Facility, taxon ID 5304645: https://www.gbif.org/species/5304645

iNaturalist — taxon ID 341157: https://www.inaturalist.org/taxa/341157-Dracaena-steudneri

World Agroforestry Centre — East Africa tree database: https://apps.worldagroforestry.org/usefultrees/pdflib/Dracaena_steudneri_KEN.pdf

Bibliography

Engler, A. (1895). Dracaena steudneri and Dracaena papahu. In: Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Teil C: 143. Reimer, Berlin. [Original descriptions of both species.]

Brown, N.E. (1914). Notes on the genera Cordyline, Dracaena, Pleomele, Sansevieria and Taetsia. Bulletin of Miscellaneous Information, Royal Botanic Gardens, Kew 1914(8): 278–279. [Establishes Pleomele steudneri and Pleomele papahu.]

Mwachala, G. & Mbugua, P.K. (2007). Dracaenaceae. Flora of Tropical East Africa: 1–43. Royal Botanic Gardens, Kew. [Authoritative floristic treatment for East African Dracaena; primary morphological reference for this account.]

Damen, T.H.J., Van der Burg, W.J., Wiland-Szymańska, J. & Sosef, M.S.M. (2018). Taxonomic novelties in African Dracaena (Dracaenaceae). Blumea 63(1): 31–53. DOI: 10.3767/blumea.2018.63.01.05. [Modern revision of African Dracaena, followed by POWO.]

Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8: 215. DOI: 10.1038/s41597-021-00997-6. [Nomenclatural backbone for POWO.]

Kasali, A.A., Adio, A.M., Adefenwa, M.A. et al. (2022). A new chalcone and antimicrobial chemical constituents of Dracaena steudneri. Evidence-Based Complementary and Alternative Medicine 2022: 1591946. DOI: 10.1155/2022/1591946. [Phytochemical characterization and documented traditional medicinal uses in Tanzania, Rwanda, and Kenya; PMC reference PMC9228254.]

Sheridan, M.J. (2008). The tanzanian ritual perimetrics and African landscapes: the case of Dracaena. Journal of the Royal Anthropological Institute 14: 491–521. [Cultural and symbolic role of Dracaena in northeastern Tanzania, including boundary and ceremonial functions.]